Creation of US dietary guidelines correlate with rise in childhood obesity

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I was reading an article by Zoe Harcombe this morning where she covers why we eat carbohydrates. In the article she gives the year in which the United States started issuing dietary guidelines. It’s 1977 by the way. I had always thought the federal government’s involvement in the public school system, in particular the school lunch program, contributed to the rapid rise in childhood obesity. I found a chart on the CDC’s web site that tracks with the issuing of federal dietary guidelines.

When dietary guidelines were introduced in the US in 1977 and the UK in 1983, telling people to eat no more than 30% of their calories in the form of fat, this inevitably meant that people were being told to consume at least 55% of their calories in the form of carbohydrate. For the avoidance of doubt, the implication of setting a cap on fat was spelled out: “Increase carbohydrate consumption to account for 55 to 60% of calorie intake” (Ref 7).

The main reason we eat carbohydrates today, therefore, is because we were told to avoid fat. It was not because we had studied carbohydrates and found them to be optimally healthy at an intake of 55%. We had not even studied carbohydrates to know that they were safe at an intake of 55%. I can’t emphasise this point strongly enough. Our intake of carbohydrate is the consequence of demonising fat. However, official dietary advice doesn’t give this as the reason for eating carbs, as it hasn’t made this connection (Ref 8). Documents such as the Dietary Guidelines for Americans and the UK Eatwell Guide focus on telling you to eat carbohydrates rather than explaining why. 

Why we eat carbohydrates – Zoe Harcombe

In the chart you can clearly see from 1963 to about 1977 childhood obesity rates were relatively flat. Starting somewhere between 1976 and 1980 the rates increase dramatically. From around 5% in 1963 to 15% to over 20% by 2016. Is it just a coincidence that US dietary guidelines started at the same time the obesity rate skyrocketed? Correlation is not causation but this looks like pretty strong evidence to me.

D’Marge Magazine marginalizes followers of low carb and keto diets

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Passing off people who are on a low carb diet as cultists who ignore science is not a good way to put forth your argument. Especially since there is now a great deal of science behind the benefits of going low carb.

While a diet high in full-fat dairy, butter, ghee and coconut oil can help us feel fuller for longer and reduce our sugar cravings, too much saturated fat raises cholesterol levels in the blood, which can lead to “furred up” arteries and an increased chance of having a heart attack or stroke.

D’Marge

The quote above from the article is highly simplistic with its claims regarding cholesterol. We now know in order to determine if you have a cholesterol problem that you need to do a deep dive into your HDL and LDL levels. It’s far more complex than just seeing higher levels.

As to why we have the rates of obesity and diabetes that we do? While low carb high-fat proponents say it’s because the food pyramid is a lie, medical professionals at places like the British Dietetic Association “believe it’s less that the guidelines are wrong, and more that we aren’t following them,” (BBC).

D’Marge

Anyone who has looked into the “Food Pyramid” knows that it is, in fact, a lie. It’s based on faulty science perpetrated by Ancel Keys and the agriculture and processed food industries.

The article gives some bad advice as its conclusion by telling its readers to swap out saturated fat for whole grains (bad), high quality protein (good), non-saturated fats (bad), fresh fruit (bad), and vegetables (can be good). At least they do recommend staying away from sugar and refined carbohydrates.