Why there is nothing wrong with being fat

Little over 3 generations ago, women could not succeed in business, politics or academia.

Little over 2 generations ago, we may have finally realised there is nothing that makes women incapable, but black people were still not deserving of the vote.

Little over 1 generation ago, we may have finally realised there is nothing wrong with being black, but homosexuality was still both a mental disorder and a crime.

Today, we may have finally realised there is nothing wrong with someone’s sexuality, but there is still something wrong with being fat.

And yet…

  • In today’s obesogenic environment, the most potent predictor of fatness is actually one’s genes.
  • There is minimal scientific evidence that diet results in substantial weight loss in the long-term (greater than 2 years).
  • Being fat and being healthy are not mutually exclusive events. Your eating and physical activity habits are (far) more important predictors of your health than a number on the scales.
  • Since we live in a time that says our body is an important part of who we are, believing or promoting this idea that fatness is bad is a recipe for body shame and emotional stress – two potent risk factors for overeating, fad dieting, mental illness, suicide and chronic disease.
  • Helping fat people to practice body and self-acceptance has been proven to enhance physical and mental health more so than dieting does. And no, self-acceptance does not make people eat ‘worse’ – research demonstrates the very opposite is actually true.

The idea that who we are is equal and enough may just be the most powerful tool we have invented to improve the health and wellbeing of our society as a whole.

And this time, the wellbeing of future generations falls on us.

[Note: This post originally claimed, “There is zero scientific evidence that diet and exercise results in significant weight loss in the long-term.” This was an exaggeration of the evidence and thus has been edited accordingly.]

Appreciating the complexity in nutrition

I was cleaning out my study the other day when I came across a dated nutrition book. Flicking through the pages, its central theme was one you have surely heard of: eating less fat will help you to lose weight and find better health.

It may vary between fat, sugar, carbohydrate or fructose, but my experience is that most popular nutrition books are based on this idea.

Important to understand, then, that nutrition is never actually linear, and always far more complex. For example, our current understanding of the relationship between fat, weight gain and health changes according to numerous variables. Here are just a few:

  • There are many different types of fatty acids, some which have vastly different health effects from others.
  • The quantity of fat that is consumed changes the health effect; consuming some fat is healthier than avoiding it entirely or consuming it in excess.
  • Foods contain much more than just fat, and some high-fat foods can be rich (or poor) sources of health-promoting nutrients like dietary fibre and antioxidants.
  • Eating less fat typically means that we will eat more of something else, and the health consequences of eating less fat are very dependant on what that something else is.
  • Fat consumption can improve the absorption of other essential nutrients, and the health consequence of this depends on your current intake of these nutrients.
  • Believing a low-fat diet is ‘good’ can actually increase our consumption of low-fat cookies and other low-fat discretionary foods.
  • How fat is cooked can change its chemical nature and subsequent health effect.
  • There is a wide variation in the metabolic response between individuals, even after digestion of the very same food. What works for one individual may not work for another.
  • Telling people to avoid the foods they enjoy can make them crave and overeat them even more.
  • Our beliefs about the health effects of what we eat likely affect their actual health outcome.

We live in a complex world, and it’s human nature to try and simplify it. To remove the many moving variables at play so that it fits into our current level of understanding. I think that’s why we mostly look at nutrition through a linear lens, arguing that the solution lies in avoiding fat, sugar, starch, salt, grains, dairy, soft drink or bread.

In reality, though, the better solution exists at the higher levels of thinking.

Thinking that considers the wider variables, understands their interconnectedness, recognises the ambiguity and appreciates the complex.

4 protein swaps that will improve your health

1. Swap processed red meats (such as sausages, bacon, ham and salami) for unprocessed red meats (such as beef, lamb and pork) and reduce your intake of preservatives, salt and nitrates, improve heart and metabolic health, and prolong your life.

2. Swap unprocessed red meats for poultry or eggs and reduce your intake of heme iron, and improve bowel and heart health.

3. Swap poultry or eggs for seafood (particularly oily fish) and increase your intake of iodine, selenium and omega-3, and improve heart health.

4. Swap seafood for legumes (such as baked beans, chickpeas, red kidney beans and lentils) and increase your intake of plant protein and dietary fibre, improve heart and metabolic health, and prolong your life.

Yes, protein can promote fullness, increase metabolic rate, stimulate the growth of muscle, and support weight management.

But food, of course, is much more than just protein.

3 things you should know about dairy

To understand how dairy foods (milk, yoghurt and cheese) affect health, consider these 3 nutrition principles:

1. Foods are much more than negative nutrients.

Yes, dairy foods are typically rich in saturated fat. But consider recent scientific research:

The health benefits of dairy, including lower and higher fat ones, makes sense: dairy foods can contain magnesium, calcium, protein, riboflavin, Vitamin B12, conjugated linoleic acid, and fermentation by-products, including probiotics, prebiotics and bioactive peptides, too.

2. Moderation in all things.

The relationship between dairy and health changes according to the amount that is consumed. Consider:

  • The relationship between cheese and heart health appears to be somewhat curvilinear, with the healthiest intake around 40 grams.
  • Large quantities of dairy may slightly increase the risk of prostate cancer.

3. There is no perfect diet.

Instead, there are many different ways to eat healthily, and no ‘best’ recommendation with regards to dairy. Consider:

  • Our body adapts according to what we eat: it has long been known that the absorption of numerous minerals is improved when their intake is low.
  • Nutrients are typically found in array of different foods, and dairy is not required for adequate calcium intake (just consume other calcium rich foods), nor is milk required for optimal bone health.
  • Dairy is not an essential food group, and the health benefits associated with its consumption can be found from eating a variety of other foods, particularly minimally processed plants.

I’ve heard advice not to eat full cream dairy (it’s high in fat!), not to eat low-fat dairy (it’s high in sugar!), not to eat cheese (it’s high in calories!), not to have cow’s milk (it’s not fermented!), and not to eat any dairy at all (it’s not natural!).

Yet my interpretation of the nutrition research is that all can be compatible with good health; yet none are essential for it.

Eat more from what you do enjoy, and enjoy more from what you do eat.

Why a calorie is not always a calorie

A calorie rich food is not always fattening, and a lower calorie food is not always less fattening. 

To demonstrate, consider these scientific findings:

  • Adding some calorie rich foods to your diet, such as nuts or olive oil, decreases waist circumference over several years.
  • Some other calorie rich foods, such as cheese, do not appear to be linked to weight gain over time. Yet some lower calorie foods, such as refined grains and potato, do.
  • Full-cream milk may actually reduce weight gain, whilst low-fat milk may not.
  • Diets high in calorie-rich foods can be better for body weight management than diets low in calorie-rich foods.

To understand this, consider the many ways a food can affect your energy balance, other than its calorie content. These include:

  • The amount of it you eat.
  • The other foods you might consume with it.
  • The foods from your diet it might displace.
  • How satisfied you feel during, and immediately after, eating it.
  • How full you feel several hours after eating it, and
  • The many ways it affects your bodies’ metabolic response, such as the resulting increase in your metabolic rate, the type and amount of hormones released to digest it, and how much your gut bacteria is fed by it.

In the short-term, weight loss is achieved by reducing calories, irrespective of food or diet.

But in the long-term, the regulation of body weight is far more complex. Some of the most calorie rich foods are among the healthiest foods that we can eat, and their consumption does not increase body weight in any way.

Much better than avoiding calorie rich foods, is to ask how you can consume more of your calories from health-promoting foods.

What is more important than sugar, saturated fat, carbohydrates and calories?

A banana is 13% sugar, and has a greater percentage of sugar than soft drink.

Yet the banana also contains potassium, magnesium, dietary fibre, Vitamin C and (when partially unripe) is one of the richest sources of resistant starch. It’s consumption, as part of a diet that contains a variety of other fruits, helps to protect you from heart disease and strokeweight gain, and helps to prolong your life.

Cheese is typically rich in saturated fat, and has a very similar fatty acid content to butter.

Yet cheese also contains calcium, protein, magnesium, Vitamin B2 and Vitamin B12. It’s consumption lowers cholesterol when eaten in replace of butter, is not actually associated with weight gain, and may (slightly) help to protect you from cardiovascular disease and Type 2 Diabetes.

Extra-virgin olive oil and nuts are both extremely rich sources of calories and fat, and provide a denser source of both than a doughnut.

Yet both extra-virgin olive oil and nuts are very rich in monounsaturated fatty acids, phenols and other antioxidants. The liberal addition of these foods to the diet protects against both cardiovascular disease and Type 2 Diabetes (substantially), whilst also appearing to potentially reduce body weight and waist circumference.

Wholemeal bread is rich in rapidly-digested carbohydrates, and results in a greater spike to blood sugar than table sugar does.

Yet wholemeal bread also contains dietary fibre, Vitamin B1, Vitamin E, folate, various minerals and phytochemicals, particularly phenolic antioxidants. It’s consumption, as part of a diet containing a variety of other whole or fibrous grains, helps to protect you from Type 2 Diabetescardiovascular diseasebowel cancerweight gain, and helps to prolong your life, too.

Why do we believe the presence of a ‘negative’ nutrient – whether it is sugar, saturated fat, carbohydrates or calories – means a food is unhealthy or fattening?

Much more important, is to look for the abundance of positive nutrients found in minimally processed foods, instead.

A Body Acceptance Manifesto

Body, more than anything, you must know you are both beautiful and enough. Exactly as you are, in this very moment.

The only words deserving of you come from a place of admiration and appreciation. Disgust, hate and fat have no place for you.

I wholeheartedly believe you are beautiful. Negative judgements – from others or my unconscious self – do not reflect you. I promise another perspective will not be given the power to undermine you.

I know that scales don’t define your worthiness. You are filled with an abundance of warmth, compassion and love. No number changes that.

I accept you will change, and that you will wrinkle, expand and sag. But know this will never change your beauty, nor how I feel about you.

I am aware there will always be slimmer, taller and more defined bodies than you. Yet your beauty is unique, and can never be diminished by the presence of another.

I commit to always being grateful for you, as you exist to always support and look after me. My words cannot express how much I admire you, or how thankful I am to have you.

I choose to feel pride and joy when sharing you. I will not hide you, or feel ashamed by you, when being with another. It is a privilege to give them the opportunity to admire and cherish you, exactly as I have learnt to.

Nutritious eating, regular exercise and adequate rest are not only aspirations for you. They are each daily practices. It is both my responsibility, and my privilege, to respect and nourish you.

Yet the greatest gift I can give you is my unconditional love. A love that supports you into becoming the best and healthiest version of you.

Although you may not be there yet, my admiration for you now is possible because I understand you are both a work of art, and a work in progress. Just as I am, too.

Body, I love you. All of you. Truly, deeply, unconditionally.

[Download and print the body acceptance manifesto for free, here.]

9 nutrition tips from those who live a long and healthy life

  1. Eat plenty of vegetables.
  2. Enjoy a variety of fruits.
  3. Include nuts and seeds daily.
  4. Eat legumes (beans and pulses).
  5. Choose high-fibre grains.
  6. Use extra-virgin olive oil.
  7. Eat oily fish.
  8. Drink tea or coffee.
  9. Enjoy a glass of red wine.

If you find yourself confused with the semantics of healthy eating, start with what we know to be associated with better health.

Once there, it’s hard to go too far wrong.

Why you should reconsider eating coconut oil for better health

A recent review on the health benefits of coconut oil finds:

  • There is not one human trial to show coconut oil lowers cardiovascular disease risk, and
  • Only 2 small human trials show coconut oil increases HDL (“good”) cholesterol, yet another 2 trials show no significant effect.

Now, compare this to:

  • A 5 year trial of over 7 000 people shows adding 50mL extra-virgin olive oil to the diet daily lowers cardiovascular disease by 30%.
  • A review of 8 long-term trials totalling over 13 000 people shows replacing saturated fats with polyunsaturated fats (like sunflower, safflower and soybean oil) lowers heart disease by 19%, and
  • A review of 60 human trials shows conclusively that replacing saturated fats with both polyunsaturated fats or monounsaturated fats (like canola and peanut oil) lowers cholesterol levels. There are at least 26 human studies showing this for canola oil alone.

Whilst a lack of evidence does not mean unhealthy, we should prioritise eating what we can confidently say is healthy.

There are many oils that fit this description. I’m not yet convinced coconut oil is one.

Why the “healthy” weight may not be so healthy

1. Healthy behaviours and healthy weights are not the same thing:

  • Overweight people who exercise and eat healthily develop excellent metabolic health, even if they are still an “unhealthy” weight.
  • Slim people who are inactive and eat poorly typically have poor health, despite their “healthy” weight.

2. Much of what contributes to body weight is actually healthy:

  • Many people who work out regularly will develop significantly greater muscle and bone mass, improve their health substantially, yet are at risk of becoming an “unhealthy” weight.
  • Not all body fat is associated with poor health, with more fat in some areas (such as the buttocks and hips) linked to better health.

3. Not accepting our current body weight is highly stressful:

  • Body weight has a strong genetic component, and I don’t know of a single person who has found weight loss to be an easy and stress-free process over the long-term.
  • Seeing yourself as an incorrect weight is a constant emotional stressor (consider that 9 in 10 formerly obese people would choose blindness (!) over being obese again).
  • Constant emotional stress predicts significantly poorer health and early mortality.

4. A large difference between your current and desired body weight is considered a better predictor of physical and mental health, than a large current body weight!

  • There is no clear bodily mechanism that directly links being overweight to poor health.
  • The association between weight and health differs between cultures who perceive the same body weights differently.

Yes, a clear association does exist between body weight and mortality for the population.

But how can one point to this data and accurately conclude that a single individual must be of a particular weight if they wish to be healthy? Especially when the association between weight and health is largely influenced by the way that we perceive our bodies.

Healthier, I think, to do more healthy behaviours, than to stress about needing to be a “healthy” weight.

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