Paleo Diet Position Update

Science encourages us to constantly update our ideas – so here’s my update on my position on “Paleo” eating.

We start with a hypothesis, work out measurement criteria, and rigorously test.
If the hypothesis is supported by evidence we accept it – until such time as something better comes along. If the hypothesis is not supported by evidence we reject it – and hopefully something better comes along.

As someone who tries to base decisions on these tenets – I feel it’s time to give you an update on my position on “the Paleo diet”.

Those of you who know me know that I’ve been a proponent of the Paleo diet for a few years now. The reason for choosing it was at the time it seemed to have a sound internal logic to it that elegantly encapsulated what is now starting to be referred to as “evolutionary medicine.”
A fundamental principle being the Dobzhansky quote “Nothing in biology makes sense except in light of evolution.” Paleo espouses:
“eat what your ancestors ate because that’s what you have adapted to eating.” The ‘trouble’ is there is no one “Paleo” diet. Depending on your latitude you may be eating a huge variety of food, and to suggest there is only one way is misguided.

I would describe humans as opportunistic omnivores.
There is no such thing as a toxic substance – only a toxic dose.

Rather than thinking about food in binary terms: as ‘good’ or ‘bad’, perhaps a more useful way would be so visualise a scale or continuum. I would grade the scale based on nutrient density per kilojoule (this is the volume of vitamins and minerals relative to the energy load.) “Real food” tends to be at one end, some processed foods appear in the middle, and what everyone would agree is ‘junk’ appears at the bad end. Then the trick is eating the ‘good’ stuff, having some ‘middle’ stuff, avoiding the ‘bad’ stuff – and not eating too much of any of it.

Paleo Diet

The common theme that’s running through the “optimal diet” is eating real food.
Unlike processed foods there tends to be high nutrient density relative to kilojoules contained.

Wild Salmon Broccoli Sweet Potato Potato White Rice Pasta Kit Kat

The links above point to nutritiondata.com. Here you can find nutritional breakdowns of a huge variety of food, including macro and micro nutrient ratios (vitamins and minerals), protein profiles, inflammation factor, glycaemic indices, fullness factor and other information.

What is skinny fat and why is it so unhealthy?

Skinny fat vs lean and fit

The difference between skinny-fat and lean-fit. Note that she’s ‘heavier’ but in better shape

Hey folks,

Conventional wisdom says that if you are thin you are healthy and if you are overweight you are unhealthy – but new research points to just how dangerous being skinny can be — if you are a “skinny fat” person, that is.

The medical term for this is “MONW,” or metabolically obese normal weight, which I prefer to refer to as being a skinny fat person. This is someone who is not overweight and has a skinny look but still have a high fat percentage (especially belly fat) and low muscle mass. Usually those people have a low calorie diet, that’s why they are skinny, but are not involved in any sports activities or training and that’s why they don’t have any muscle. To the uneducated, untrained eye, a skinny fat person may appear to have a physique of the same caliber as an individual who is comprised of significantly more lean tissue.

While we know that 63 percent of Australian males and 48 percent of females are overweight (1), and that most have diabesity — being somewhere on the continuum of pre-diabetes to Type 2 diabetes — the shocking news from a study published in the Journal of the American Medical Association is that nearly 1 in 4 skinny people studied have pre-diabetes and are “metabolically obese.” (2)

It seems it is better to be fat and fit than thin and out of shape. It turns out that if you are a skinny fat person and get diagnosed with diabetes, you have twice the risk of death than if you are overweight when diagnosed with diabetes (2). Perhaps having that extra muscle on your body from having to carry around those extra pounds protects you.

Get the Right Tests

So how do you know if you are a skinny fat person? There are a few criteria you can use that can help you identify yourself as having diabesity or being skinny fat, including family history of Type 2 diabetes or early onset of heart disease (heart attack in relative under 50 years old), or even looking down and see a little pot belly. And if you are of Asian or Indian descent, you can get diabesity at a much lower body weight.

There are some important blood tests that you should have your doctor do:
Fasting blood sugar or glucose (normal 4.0 – 6.0 mmol/l*)
Triglycerides (the recommendation is for less than 2.0 mmol/l*)
HDL (“good” cholesterol (normal greater than 3.5 mmol/l*)
Blood pressure (normal is 120/80*)

*Please be aware that reference ranges or “normal” depends on a number of factors including patient age, gender, sample population and test method, and numeric test results can have different meanings in different laboratories.

There are a few special tests your doctor may not do that you should insist on that tell the true story and help to detect diabesity much earlier. They are:

1. An insulin response test (what most doctors call a glucose tolerance test but with the addition of insulin measurements) that will measure glucose (blood sugar) AND insulin levels while fasting and one and two hours after a 75-gram glucose drink (the equivalent of two soft drinks).

2. A NMR Lipid Particle Test which measures the number and size cholesterol particles. Most cholesterol tests just measure the total amount but the particle test is MUCH better at predicting risk for heart disease. When you are a skinny fat person with diabesity you have too many particles, and they are the small, dense, dangerous kind.

The Treatment for Skinny Fat Syndrome

The treatment for the skinny fat syndrome is the same as the treatment for someone who is overweight with diabesity.
It is quite simple actually.

Get enough Sunlight — 15 to 20 minutes to 20% of your body per day will do it unless you’re dark skinned.

Get enough Sleep — Sleep deprivation alters metabolism and increases cravings for carbs and sugar. Sleep is sacred. Make your bedroom a sleeping temple and stay there for 7 to 8 hours a night.

Eat a Low-Glycaemic Load Diet — Meat and vegetables, nuts and seeds, some fruit, little starch, no sugar.

Power Up with Protein — Start the day with protein and at each meal. This makes your metabolism run hotter and cuts hunger. Incorporate eggs, nuts, seeds, chicken, fish or protein shakes.


Don’t Drink Your Calories — No soft drinks, juices, sweetened drinks and no more than 3-4 glasses of wine or alcohol a week with meals.

Avoid the Deadly White Powder or Flour — Including gluten-free flour products. Even whole grain flour acts like sugar in your body.


Beware of Frankenfood — Factory-made foods are often science projects with fake ingredients including MSG (which causes ravenous hunger and is hidden as “natural flavoring”), high fructose corn syrup, artificial colours, preservatives, and chemicals.


Get an Oil Change — Eat omega-3 fat-rich foods including sardines and wild salmon and avoid refined and processed vegetable oils except olive oil.


Get Fit and Get Strong — Both cardio and strength training are key (3). Cardio builds fitness and improves metabolism, and strength training builds muscle so you won’t be a skinny fat person.

Supplement if necessary — Fish oil (EPA/DHA,) and vitamin D do the trick for 95 percent of people – if they can’t get what they need from food.

References:

(1) Australian Bureau of Statistics, 4125.0 – Gender Indicators, Australia, Jan 2012 (Retrieved 10th Dec 2012)

(2) Carnethon MR, De Chavez PJ, Biggs ML, Lewis CE, Pankow JS, Bertoni AG, Golden SH, Liu K, Mukamal KJ, Campbell-Jenkins B, Dyer AR. Association of weight status with mortality in adults with incident diabetes. JAMA. 2012 Aug 8;308(6):581-90.

(3) Ribeiro JP, Schaan BD. Physical activity advice only or structured exercise training and association with HbA1c levels in type 2 diabetes: a systematic review and meta-analysis. JAMA. 2011 May 4;305(17):1790-9. Review.

Time for Dr Oz to go

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Dr Oz returns!
This time on the cover of time magazine, once again wading into the murky waters of nutrition, despite being a cardiologist…

I don’t automatically reject everything Oz says – I just view it with a fair degree of scepticism. After all, Newton believed in the reality of alchemy in addition to his world-changing theories about motion and gravity.

All I’m asking is that you exercise caution when reading his opinions about nutrition. For more about Dr Oz and some of his more ‘interesting’ forays into various therapies, please click here.

What is the best bikini diet for summer?

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What is the best bikini diet for summer?

You can see this kind of headline in (insert trashy magazine name here) promoting the latest, greatest diet from some ‘celebrity’ or other – usually someone famous for being famous. Alternatively, the guru of girth is an actress, who 95% of the time is famous because they are genetically gifted with symmetrical features and an enviable physique (and can sometimes act).

Do you want to know what truly is THE best bikini diet for summer?

Proper nutrition:
Eat clean, unprocessed food. Meat, fish, fowl, vegetables, some fruit, nuts and seeds. Drink plenty of water. Lay off the alcohol. Repeat.

There is no magic bullet. Eat sensibly in a way that you can sustain. Binging and purging in an attempt to look like a ‘star’ is for losers – and beneath you.

What’s the most ridiculous magazine headline or story you’ve seen? Please post to comments.

Protein: Where can I get it?

As we discussed in the last post, Protein is made of basic organic compounds called amino acids, and has two main forms: complete and incomplete. Complete proteins contain all the amino acids vital to the body, while incomplete have only some of them. Various kinds of food can be sources of protein.

Beef is a common source of complete protein. Two or three servings of protein is enough to satisfy the body’s daily requirements.

Dairy products such as cheese, milk, and yogurt are good examples of complete protein sources. For those who are not lactose-intolerant or allergic, dairy products can be part of a well-balanced meal, or eaten alone as a snack.

Eggs are a rich source of complete proteins. The body utilizes complete proteins derived from eggs and similar sources to produce new cells and repair damaged ones.

Complete proteins also derive from fish. Eating fish at least two times weekly is highly advisable as it contains n-3 (Omega 3) fatty acids which are vital for brain health and help to reduce systemic inflammation.

Meat from poultry, such as chicken or duck, is a common source of complete proteins.

Soybeans are the only vegetable protein source that contain all nine essential amino acids.

Grains are a source of incomplete proteins, notes the University of Maryland Medical Center. Choices include barley, corn, oats, rice and wheat.

Legumes such as beans or peas are examples of incomplete protein sources. You could pair legumes with other incomplete plant proteins to complete the amino acids–for example, eat corn with beans.

Nuts and seeds are sources of incomplete proteins. Almonds, brazil nuts and cashews are typical examples of nuts containing protein. Pumpkin seeds and sunflower seeds also contain protein.

For some more information check out Alison Anton’s balanced post about protein consumption.

In future articles, we will look at sources of beneficial fats and their utility, as well as the role of dietary carbohydrates and preferable sources.

Protein: The Building Blocks of Life

There is no process in the body that does not require protein. They truly are the building blocks of life. Protein is essential for proper immune function, effective and safe detoxification, creating and maintaining lean muscle, stabilizing sugar levels, producing energy and controlling weight.

Women need to consume 0.75g x their body weight (in kg) in protein a day whereas men need to consume 0.85g x their body weight, depending on activity level. Those over 70 years of age need to consume 1g for every kilogram they weigh, as do pregnant and breastfeeding women.

A good and easy habit to start is including protein in every meal and snack. Each main meal should contain a palmful of lean animal protein (e.g: turkey chicken, fish) or two palmfuls of vegetarian protein (e.g; tofu, lentils, nuts).

High protein snacks help to keep us full and stop us from snacking on junk food. Examples include a boiled egg, a can of tuna, a protein shake and nuts.

Diets high in protein also need you to keep up or increase your water intake so bottoms up!

Meat sources of protein contain about 30g of protein per 100g while twice from a non-meat source will give you the same value.

How much Protein do you need?

Males

______ (kg) x 0.85 = _____ (grams/day)

Females

______(kg) x 0.75 = ______ (grams/day)

Breastfeeding mothers and those over 70 years of age

_______(kg) x 1 = ________ (grams/day)

Article thanks to Mei Wong of Chirotherapy