The David Gillespie Blog

If you change nothing, nothing will change
May 2, 2015
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Don’t fall for marketing spin when it comes to public v private education debate

By | Education, Media | 2 Comments

WHAT better way to frame the public vs private school debate, which is back on again thanks to recent research by the University of Queensland, than with a solid footy metaphor.

One of my sons plays AFL for a local suburban club in Brisbane. It’s a good club. They take masses of kids in every year and give them an excellent grounding in the game. Some take to it and some don’t but they all learn more about footy. Every few decades someone from the club even makes it to the AFL.

This pretty good club also has a senior team which wins the local Brisbane comp every so often. But I am reasonably certain that if they were to take on Collingwood or Geelong (or even the Brisbane Lions) they would be completely decimated.

Everybody knows this. Everybody accepts this. And nobody suggests that this means my local club is a bad club. We all know that the professional AFL club has (literally) spent millions recruiting a team full of A-List players. Did the AFL coaches make those players brilliant? No. They recruited players they already knew were brilliant from clubs like ours.

We quite happily accept that this is how sports work. But when it comes to another area of skill acquisition, suddenly we turn off our common sense and gullibly accept self-interested marketing.

In Australia some schools choose their student body. These schools are overwhelmingly fee-receiving ‘private’ schools and they target their marketing at high income parents (which, unfortunately in this country correlates with academic performance).  To egg the pudding they also top up the better-than-average kids with proven performers using academic scholarships. Then when these kids perform exactly the way their family income and results would predict they might (wherever they went to school), they use those results as marketing fodder for the next generation.

These schools are the education equivalent of Collingwood or Geelong (or even the Brisbane Lions). But when my local public school is compared to the Really Flash Grammar School in a league table suddenly RFGS is great school and my local is rubbish. The comparison is no more reasonable than comparing my local football club to a professional sports club, but it is what we do every time we look at a league table of schools arranged by average NAPLAN score.

The only reasonable way of comparing my local club with Collingwood is to measure the value it adds. Player A had these measurable proficiencies at the start of the season and improved them by this measurable margin by the end. It doesn’t matter whether the player is in the worst of the under 8s or the next Gary Ablett. A good coach should be able to get measurable improvement from every player.

This is no less true in schools. The performance which matters, the only criteria that should matter, is the measurable gain in student performance. This means measurable gain for every student. It means moving every child forward every year. It does not mean showering praise on schools whose only claim to fame was ensuring they selected the right kids in the first place.

Fortunately in Australia we have a public database of student gain (yep, it was news to me too). We can all visit a free government website (myschool.edu.au), plug in the name of any school and see whether students at that school have achieved more, less or the same as the rest of the nation between each NAPLAN test.

But be careful. You’re in for some surprises and might not like what you see. You might find that the local high school that everyone says is populated by yobs is adding value in significant leaps and bounds. You might find that RFGS is subtracting value for its $30k a year fees. And you might find the opposite.

What you will definitely find is that there is no correlation between how much people are (or aren’t) paying to attend the school and whether it is likely to add value. So do yourself a favour, don’t be a victim of slick marketing. Find the schools that are adding value and let student gain be your yardstick (not the number of BMWs in the parking lot). Do that, and you are sure to make an excellent choice for your children’s education.

Also published in The Courier Mail

Image courtesy of digitalart at FreeDigitalPhotos.net

March 24, 2015
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Eat Real Food now available

By | Books, Sugar, Vegetable Oils | 17 Comments

Enter the great Book #1 Give-away. David will give away the first copy of Eat Real Food – signed and personally inscribed as Copy #1 – to the winner of this competition. Enter below.
a Rafflecopter giveaway

In the last 100 years, we’ve become fatter and sicker with millions of people developing serious diseases from diabetes to cancer. Health gurus confuse us with complex diets and expensive ingredients; food manufacturers load their products with addictive and destructive ingredients causing our increasing weight and declining health. But help is at hand. Health and consumer advocate David Gillespie shares the simple secret of weight loss and wellbeing: swap processed food for REAL FOOD. Eat Real Food features:

  • An explanation of why diets don’t work and a provides a focus on what does
  • Information on how to lose weight permanently, not just in the short-term
  • Evidence-based science explaining the real culprits of ill health and weight gain.
  • Advice on how to read food labels.
  • Easy recipes to replace common processed items and meal plans that show how simple it is to shop, plan and cook Real Food.
  • Tips for lunchboxes, parties, and recipes for food kids actually like.

Eat Real Food is the safe, effective and cheap solution to lose weight and improve our health permanently

Buy Now Read an Extract
January 21, 2015
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4 Sugar Filled Foods the Heart Foundation would like you to eat

By | Big Fat Lies, Sugar | 7 Comments

Yesterday the Heart Foundation publicly demanded the Government take action to address Australia’s obesity crisis.

Heart Foundation chief executive Mary Barry told The Age that with 60 per cent of Australian adults and a quarter of children now classified as overweight or obese, the government needed to immediately implement a tax on sugar water.  You see, the Heart Foundation is (rightly) very concerned about sugary drinks. It has been campaigning against them for two years now.

Oddly though, their concern about sugar does not extend to products that bear the Heart Foundation’s paid endorsement (the Heart Foundation Tick).

Perhaps it’s the water in a sugary drink that renders them dangerous?  Because the Heart Foundation apparently has no problems accepting licensing fees from the manufacturers of these sugar loaded ‘foods’.

  1. Nestle Milo Cereal.

At 27.3% sugar, Nestle’s Milo Cereal will add a tidy 7 teaspoons of sugar to the average teenager’s breakfast bowl (100g).  If you caught your teen ladelling 7 teaspoons of sugar into anything you’d probably have a word or two but with this stuff the work is all done.  Welcome to the first Heart Foundation approved breakfast.

  1. Kellogg’s Just Right.

Ok Milo might have a Tick but it is chocolate after all.  The next cab off the rank is less obviously dessert like but it packs a sugary punch too.  This little Heart Foundation approved beauty weighs in at 28.7% sugar.  Do you want some cereal with your sugar?

  1. Uncle Toby’s Quick Sachets – Creamy Vanilla

You might think you were on safe ground with a nice bowl of porridge (especially from a product bearing the approval of the Australian Heart Foundation) but with almost a quarter (24.9%) of every bowl being sugar this aint no dieter’s paradise.

  1. Kellogg’s K-Time Twists – Strawberry & Yoghurt

Having filled the kids (and you) with Heart Foundation approved sugar for breakfast you will probably be looking for a healthy snack for morning tea.  Have no fear, there are Heart Foundation approved delights at hand.  This little sweetie is a whopping 36.2% sugar, which is a fair chunk more than a nice bar of Lindt Dark Chocolate (29%).  The chocolate bar of course does not bear a Heart Foundation tick but perhaps they should think about applying?

While it is lovely that the Heart Foundation wants us to consume less sugar, their campaign would be significantly more persuasive if they stopped accepting payment for endorsing sugar loaded products like these at the same time as they demanded that sugary drinks be taxed.

January 16, 2015
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We are entitled to more than insults and hand-waving from the medical profession

By | Big Fat Lies, Sugar | 5 Comments

Yesterday the President of the AMA in Queensland, Dr Shaun Rudd warned Queenslanders that their State was at risk of sinking into the sea if they didn’t stop being so fat.  He declared a “state of emergency” in the “war of the wobble”.  The excuse for his bizarre rant (which seemed also to target tuckshop ladies and their arms for some reason) was that the AMAQ wants whoever wins the QLD state election to implement their recommendations aimed at reducing obesity.

It is a good while since I have heard fat-ist drivel so plainly spoken.  The message is loud and clear.  If you are overweight, you have a character defect and you need to harden up (and be saintly and thin). The derision in this Irish GP’s voice was palpable.  That it should be uttered by a doctor representing the health system that has put us in this position is quite frankly disgusting. It should come as no great surprise then that the AMA’s proposed solutions to the crisis are worse than pathetic.

Do they suggest implementing the WHO guidelines on the reduction of sugar?  Have they reviewed the recent evidence (again) confirming that sugar is the source not only of obesity but the vast majority of chronic disease now crippling our health system?  No.  Their suggestions are to ban fast food outlets opening near schools and subsidise fruit and vegetables in ‘at risk’ communities (whatever they are).  Describing those policies as ‘limp’ would be a significant overstatement.

There is nothing wrong with lamenting the danger we all face from obesity.  There is nothing wrong with wanting government to do something about it.  But name-calling and spit-balled non-initiatives spouted by a doctor afflicted with superioritis majoris is not the answer.  We know what causes obesity (sugar) and we know what fixes it (removing sugar).  So please AMAQ, drag your policy (and speech) writers into the 21st century and start lobbying for change that would really make a difference.

December 19, 2014
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How Margarine and its seed oil filled brothers give us Multiple Sclerosis

By | Big Fat Lies, Charts, Vegetable Oils | 26 Comments

Multiple Sclerosis (MS) was once a rare disease that mainly affected Scandinavians or people who otherwise didn’t get much sunlight.  But that has all changed.  Its prevalence is accelerating wildly and sunlight is much less relevant than what you shove in your gob.  If you’d rather not get MS then it is vital you avoid consuming the Omega-6 fats found in most processed foods.

Our central nervous system is our electrical wiring.  If our brain wants to tell our fingers to move, an electrical signal is sent along the nervous system and the fingers move.  Just like electrical cables nerve cells have an insulating cover (called myelin).  Electrical signals travel much faster (and are much more certain to get to the destination) in insulated nerves than in non-insulated nerves.

Seventy percent of the insulation is fat and a fair chunk of that is polyunsaturated fat.  Unfortunately this means that the insulation is prone to damage from oxidation.  But not to worry, we have a perfectly good repair system.  The cells which make myelin (called oligodendrocytes for those who want to get all technical) are very handy at continuously patching up any damage.

MS is disease caused by our immune system attacking and destroying the myelin insulation.  This damage disrupts the ability of parts of the nervous system to communicate and it results in an array of symptoms which range from fatigue, physical incoordination, spasms, partial blindness as well as learning and memory problems (depending on which part of the nervous system is damaged).

Unfortunately people with MS can’t completely repair the damage being inflicted by their immune system and over time the cumulative damage means that the symptoms become progressively worse.

According to the World Health Organisation the biggest risk factors for MS are living in a place with little sunlight or a place exposed to processed food (the Western Diet).  In the 1950s the biggest risk factor by a country mile was latitude, but as processed food has infiltrated the diet of more and more countries, those countries have caught up to the rates in countries with low sunlight exposure.   In Iran for example the incidence rate quadrupled in just the two decades between 1989 and 2008.  But there is (and always has been) plenty of sunlight there.

In countries exposed to the Western Diet for most of the last five decades (such as Australia), the number of new cases of the disease recorded per year (after adjusting for population increases) has also quadrupled.  Make no mistake MS is an epidemic on the march.

Our immune system attacks parts of the body largely because the component (T regulatory cells or just TRegs) which is supposed to stop that happening becomes disabled.  One of the most efficient ways to disable TRegs is to consume too much omega-6 fat.

The Western Diet is stuffed to the brim with Omega-6 fat courtesy of the steady replacement of animal fats with seed oils (such as canola, sunflower soybean etc).  So every time you eat processed food or tuck into fried food you are taking on a massive dollop of omega-6 fat.

For example if you were drop a serving (20g) of Praise Mayonnaise onto your bacon and egg sarnie you would be consuming around 5 grams of Omega-6 fat (just from the mayo).  That’s about three times what your body needs for the day (and that’s before we take into account the margarine, the bread, the grain fed bacon, the factory farmed egg or anything else you eat that day).

Sunshine (or, at least its ability to make us make Vitamin D) is a partial remedy to this problem because Vitamin D boosts the numbers of TRegs.  This gives us a fighting chance at stopping our own immune system in its tracks.  And that is why, before the advent of a seed oil filled diet, the exposure to sunlight, more or less determined your likelihood of having MS.

We aren’t born with a completely myelinated nervous system.  It takes us about 20 years to finish the job.  This means that when people move from a place with low rates of MS to places of high rates of MS (or the other way round), their age when they move is an important factor.  If they are over 15 when they move they will have the same risk of developing MS as the place where they were born.  If they are 10 or younger it will be the same as the place where they move to.

It’s likely that this strange age-related phenomenon is because of another characteristic of our seed oil filled diets.  Overconsumption of omega-6 fats causes the body to enter a state called oxidative stress.  This is where the highly reactive omega-6 fats overcome our anti-oxidant defences.  Oxidative stress is known to be lethal to the cells which produce our nerve insulation.

It is therefore probable that constant exposure to omega-6 fats while a child is growing those very cells, will result in insulation which is not up to spec.  And a weakened insulation makes them much more susceptible to the immune system attacks which will almost inevitably happen if they stay on that diet.

MS is a truly horrendous disease that is striking more people, younger.  It is clear that the cause is the massive increase in the use of seed (vegetable) oils in our food.  MS was once a disease that struck only susceptible people who were not exposed to enough sunlight.  Seed oils are now ensuring it is something that all of us must fear.

If you have MS, I’m sorry.  If you can stop eating seed oils (and get some Sun), it may help with symptoms.  If you don’t have MS, stop eating seed oils (and get some Sun) and you will dramatically reduce your chances of getting it.  If you have children, don’t let them anywhere near seed oils, ever, but especially not before they’re 20.

Graphic from:  WHO – Atlas multiple sclerosis resources in the world 2008.

December 14, 2014
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The Four Drugs that Aussies can’t live without.

By | Big Fat Lies, Charts, Sugar | 18 Comments

Last week the Australian Health Department published its annual hit parade of Australia’s most used drugs.  It revealed that just two ‘diseases’ accounted for eight of the top 10 places, high cholesterol and high blood pressure.

Because the vast majority of drugs prescribed here are heavily subsidised by the taxpayer, the Federal Government keeps a very accurate tally of what our doctors are putting in our shopping bags.

This year’s top of the (pill) pops tells us that on any given day 32 out of every 100 men, women and children in Australia will be knocking back one of the pills in the top ten.

#1 with a bullet – Anti-hypertensives.

13.4 of those 32 people will be downing a pill for their blood pressure with their morning orange juice.  They’ll probably be studiously avoiding salt as well on doctor’s orders.

The only problem is that research published just this week tells us the OJ is more likely to be causing the blood pressure problems than any amount of salt they might be consuming.

This confirms a long line of studies which have concluded that the fructose half of sugar is the cause of high blood pressure and not the salt.

#2 – Statins, the drug without a disease.

Riding hard on the heels of the blood pressure pills, 12.9 of those 32 people will be taking some sort of Statin, a drug that treats exactly nothing, but which is supposed to lower the risk of future heart attacks.

Statins are powerful drugs that alter the function of important liver enzymes, and the evidence suggests that the only class of people who benefit are younger men who’ve already had a heart attack.

The only people who should be given statins should be this very small group (and then only if their doctor feels the benefit outweighs the risk of diabetes and dementia).

#3 – Paracetemol

If this list is giving you a headache then you’ll likely be joining the 3.4 out of every hundred of us who will pop a Panadol today.

#4 – Reflux medication

Rounding out our list is a medication to treat heartburn and GERD (Gastro-Esophageal Reflux Disease). Just 2.5 in every 100 of us will be getting into those pills, but recent data tells us it a class of drugs with a big future.

GERD is likely to be caused by a combination of the obesity caused by eating too much sugar and the bacterial overgrowth caused by, yep you guessed it, eating too much sugar.  It won’t come as too much of a surprise then to discover the percentage of the population suffering from GERD has significantly increased in the last two decades.

More than 1 in 10 Australians now suffer from the disease and almost 7 million scripts a year are written for the one drug (for GERD that makes the Top 10) alone.  It is the fourth most expensive medicine funded by the Australian taxpayer (who shells out more than $200 million a year for it).

Taken together, the Top 10 list accounts for a serious chunk of Australia’s pharmaceutical budget.  It’s a budget that is under constant pressure. And there are many unfunded drugs that don’t make the cut, not because they don’t work, but because too few people will benefit.

Instead we’re spending our precious drug dollars on massively overprescribed statins and drugs to treat diseases of sugar consumption (oh and headache pills).  Wouldn’t it be better if we just stopped eating the sugar and listening to drug company marketing around statins?

November 17, 2014
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Meadow Lea adds sugar to margarine to entice kids

By | Sugar, Vegetable Oils | 7 Comments

Just when you thought margarine was about as dangerous as any ‘food’ could get, Goodman Fielder have released their new range with added sugar.

That’s right, now you can get margarine with added sugar.  And not just a smidge, one fifth of the product is sugar (sugar content ranges from 17.8% to 20.5% depending on the flavour).

The omega-6 fats which dominate ordinary margarine are implicated in (at least) osteoporosis, male infertility, rheumatoid arthritis, Parkinson’s disease, allergies, asthma, macular degeneration, impaired intelligence and cancer.

But now with twice as much sugar as an equivalent quantity of Coke, Meadow Lea Breakfast Twists put the unwary consumer on track for an even more spectacular array of chronic diseases including Type II Diabetes, Kidney Disease, Fatty Liver Disease, Heart Disease, Erectile Dysfunction and Alzheimer’s.

If I tried to think of a way to combine the very worst of a processed food diet in a single product, I don’t think I could do any better than this.  Besides the obligatory preservatives, flavours and colours there’s really nothing in this product but seed oils and sugar (with a pinch of salt and a dash of ‘milk solids’).

Ingredients: Vegetable oils 45% (containing 36% Canola & Sunflower oil), water, sugar, salt, milk solids, emulsifiers (soy lecithin, 471), preservative (202), food acid (lactic), colour (beta-carotene), flavour, vitamins A & D.

But perhaps the very worst thing about this stuff is that it is being marketed to (and for) kids.  The site proudly proclaims

“And because it’s been taste tested with kids, you know they will love it!”

This is especially appalling because the evidence is clear that many of the diseases associated with omega-6 fat consumption develop in childhood.  Worse, the damage is cumulative and likely to be irreversible.

None of the research on the harm done by sugar and seed oils is a secret. No-one should ever eat margarine, but children especially should be kept as far away from it as possible.  And yet, Goodman Fielder appear to have explicitly designed this product to make it more appealing to kids (by adding a ton of sugar).

It is despicable behaviour of the highest possible order and it should not be rewarded with commercial success.  Please tell everyone you know to avoid this product like the bubonic plague.

November 4, 2014
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Margarine makes your kids stupid enough to eat margarine

By | Big Fat Lies, Vegetable Oils | 3 Comments

A significant component of what makes us intelligent is created from our mother’s fat stores.  Unfortunately the fats which dominate margarines and processed food stop that absorption happening and impair intelligence in children to a greater degree than was ever caused by lead. If you want your kids to be as smart as they can be then they (and you) need to immediately stop eating those fats.

About 10% of our brain is made from an Omega-3 fat called DHA (docosahexaenoic acid for the biochemists amongst us).  We can make DHA from a simpler omega-3 fat called ALA (alpha-linolenic acid).  That’s the form of omega-3 which exists in most of our food.

Unfortunately we are not very good at converting dietary omega-3 ALA into DHA.  Less than half a percent of the ALA we consume ends up as DHA.  This means that relying on mum to eat enough omega-3 ALA while she’s pregnant would be a disastrous strategy for baby brain building.

Luckily we have a plan.  As soon as a woman reaches puberty her body starts storing up as much Omega-3 fat as it can.  Uniquely among animals (because we are the only ones who need to build relatively gigantic brains), female humans store all that omega-3 ALA in a baby pantry located at the top of the legs and in the buttocks.

Unfortunately for girls who wish to become Supermodels, the body cannot tell the difference between the various sorts of fat, so it just stores all the fat it can find in the hope that enough of it will be the good stuff.

Since the point of storing the fat is to ensure there is enough (ALA to make) DHA to make a baby’s brain, the body will not easily let go of it.  That is, until the third trimester of pregnancy.  Then the floodgates are opened and the fat is released.  Because brain construction doesn’t finish when a child is born, it’s also important that the supply of DHA continues after the baby is born.  Breast milk (and now formula) contains large amounts of DHA.  In total, 80% of the fat used in construction of a child’s brain comes from the mother’s stores (rather than her current diet).  So perhaps the old saying should be ‘A moment on the lips, a lifetime on the hips in your child’s brain’

We know from animal studies that if there is not enough DHA, animals end up with brains that don’t have enough neurons, the cells that do all the work in our brains.  That lack of basic circuitry in turn impairs the child’s development and intelligence.   And it looks like the results hold in humans as well.

Just last month, a study in humans was able to show that the amount of DHA in breast milk was the strongest predictor of test performance across samples drawn from 28 OECD countries.

But before you start force-feeding teenage girls, mothers and kids fish oil tablets, you should know that there is a little twist in this tale.  Omega-6 fats stop us using DHA to make us brainy.  So it doesn’t matter how much Omega-3 you have if you also consume too much Omega-6.

Omega-6 fats are the dominant fat in seed oils (canola, soybean, grapeseed, corn, sunflower etc).  These are the fats that margarine is made from.  These are the fats which are now used in every packaged food on the supermarket shelf.  And these are the foods in which every fried food is boiled.  We now eat 10-20 times as much omega-6 fat as omega-3 fat.

Omega-6 fats compete with Omega-3 fats for the same enzymes.  Critically one of those is the enzyme which turns garden variety omega-3 ALA into DHA.  If we have equal amounts of omega-3 and omega-6 in our diet, just the right amount of DHA is created and all is good, but if we have too much omega-6, we fail to make enough DHA.

You might predict from that, that countries that eat a lot of seed oils loaded with omega-6  would tend not to do so well in tests and you’d be right.  The researchers in the most recent study found that there was a very strong correlation between the amount of omega-6 in the diet and how poorly 15 year olds did on standard international benchmark tests.

This confirmed the findings of five previous human studies which showed that higher omega-6 intakes impaired cognition (made us dumb – translation provided in case you’ve been hitting the margarine).  Indeed one 2011 study determined that the impairment was greater than the effect of lead!! (double exclamation points are well and truly warranted on that statement)

Just like omega-3 fats, omega-6 fats are stored in the baby pantry, ready to use when needed.  So the fats used to construct a baby’s brain are not just the fats a woman is eating when she’s pregnant or breastfeeding.  They are every fat she has stored since puberty (or since the last baby used them up).  Babies being constructed today are having brains built from the fats used in processed food for the last 20 years.

We now use unleaded petrol because of the damage lead in petrol did to developing brains. If we want the next generation not to be ‘cognitively impaired’ by seed oils, we need to act now.

We need to ensure that (at the very least) young women are not consuming foods overloaded with omega-6 fats.  This means no margarine, almost no processed food and no commercially fried food.  In other words they need to eat real food and they need to do it now.

If they do this their children will be smart enough to thank them for it.

Image courtesy of Phaitoon at FreeDigitalPhotos.net

October 28, 2014
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How Margarine breaks your bones

By | Big Fat Lies, Vegetable Oils | 5 Comments

Scientists have known for more than a decade that the omega-6 fats contained in vegetable oils (like those used to manufacture margarine) degrade human bone density.  Now new research has thrown light on how that happens and why anyone concerned about osteoporosis needs to immediately stop consuming them.

One in twenty Australians have osteoporosis (Greek for ‘porous bones’) and 1 in 4 have low bone density (the precursor to osteoporosis). The number of people affected is accelerating wildly. In the last 10 years the number of GP visits related to osteoporosis has doubled in Australia.

Our bones are not static lumps of rock.  They are living tissue which constantly accumulate and dispose of minerals.  Osteoporosis occurs when bones lose minerals, such as calcium, more quickly than the body can replace them.  This causes a loss of bone thickness (bone density or mass).

As bones become thinner and less dense, even a minor bump or fall can cause a serious fracture. Unfortunately most people don’t know they have the disease until after they suffer a break.  Eight out of ten cases are recorded in people over the age of 55 but the age of onset is becoming progressively younger.

Osteoporosis medicines work by making the cells that break down bone (osteoclasts) less active.  This tips the balance towards accumulation of minerals by the cells that form bone (osteoblasts).

A long series of animal studies have clearly established that polyunsaturated fats are important drivers of the bone recycling process.  We know that omega-3 polyunsaturates which dominate some fish oils, flax seeds and kelp help us build up bone density.  While the omega-6 fats which dominate seed oils (like sunflower, soybean, canola, safflower and rice-bran) destroy bone density.

In 2005 researchers at the University of California confirmed that the same rules were at work in a large human population.  In that study 1,532 people were observed for 4 years.  The results were spectacularly consistent.  The more omega-6 a person consumed (or the higher their omega-6 to omega-3 ratio), the lower their bone density was.  It really was that black and white.

The results were independent of medication use, their BMI or the amount of exercise they did or didn’t do.  This means that all the things which we are told affect our chances of getting osteoporosis were rendered irrelevant by just one thing, the amount of omega-6 fat in the diet.

Unfortunately (for our health) nobody in the Health Community wants to hear that they should stop telling people to eat seed oils, so there has been precious little publicity about that line of studies.  That is, until bone density started mattering to people who breed animals for a living.

As we feed more and more of our farmed fish, diets which are high in omega-6 fats, they are becoming more and more fragile.  It seems that just like humans (and rats).  Their bones go to pot if we ramp up the omega-6.

This latest proof of the bone destroying power of omega-6 comes courtesy of an aquaculture study out of the Norwegian National Institute of Nutrition and Seafood Research. In that study, the scientists observed a rise in the level of activity of the enzyme that breaks down bone, in line with the rise in omega-6 concentrations.

We don’t know exactly how omega-6 works its destructive magic but the scientists suspect that it relates to the production of PGE2, the prostaglandin responsible for bone metabolism.  We make PGE2 from omega-6 fats, but the presence of omega-3 fats stops it being produced.  This is because omega-3 and omega-6 compete for the same enzymes.  If we make just the right amount, everything is tickety-boo but if we make too much, say, because we have too much omega-6 and not enough omega-3, then we start breaking down our bones.

Every processed food on the supermarket shelves is loaded with omega-6 fats (in the form of seed oils).  Every fried food has been boiled in omega-6 fats (seed oils again). Our National Heart Foundation actively encourages us to eat margarines brimming with omega-6 fats (yep, seed oils).  And the charity responsible for advice about Osteoporosis doesn’t even mention the known link between omega-6 fats and the disease.

In this environment it is not strange that the number of people affected has doubled in just a decade, it’s a bloody miracle it hasn’t tripled.  But stay tuned, at the rate we are increasing the consumption of omega-6 fats, there is much more pain to come.

Image courtesy of Boaz Yiftach at FreeDigitalPhotos.net