Popular Diets Tested And Compared
I came across an article that I wanted to share with you. Researchers at the Harvard School of Public Health and the Pennington Biomedical Research Center compared various diets in 811 obese people over a period of two years. Here are the diets they tested:
- a high-carb diet (20% fat, 15% protein, 65% carbs)
- a low-fat diet (20% fat, 25% protein, 55% carbs)
- a high-fat diet (40% fat, 15% protein, 45% carbs)
- a high-protein diet (40% fat, 25% protein, 35% carbs)
Apart from the varying macronutrient profiles, there was an underlying similarity between the four diets: all participants had an average of 750-calorie reduction per day.
"In the end, all the diets produced weight loss to the same extent," said Dr. Frank Sacks, lead author of the study and professor in the department of nutrition at the Harvard School of Public Health. "It really doesn't matter what particular amounts of fat, carbohydrates or proteins you eat. The key really is that it's calories. It's not the content of fat or carbohydrates, it's just calories," said Sacks.
Participants could attend individual support sessions with dieticians, and those with better attendance had stronger weight-loss results. "These findings together point to behavioral factors rather than macronutrient metabolism as the main influences on weight loss," acccording to the study.
In addition to dispelling the importance of macronutrient distributions, the study also showed little difference in users' hunger or satisfaction with their diets - which disperses the claim of low-carb diets that they produce higher satiety.
I would like to end this with a quote from the article: "For people who are trying to lose weight, it does not matter if they are counting carbs, protein, or fat. All that matters is that they are counting something." Welcome to Calorie Count.