Quote:
Originally Posted by Tyrone Slothrop
FWIW, from the book review I linked above earlier, which I really do recommend:
That's a neuroscientist named Stephan Guyenet, whose book is the subject of the review. |
I've stolen this but I like the summary:
"Diets with identical calorie intakes but different macro nutrient ratios have different effects on body composition, physical performance, TEF, cholesterol levels, oxidative stress, and many other physiological factors. Genetics also are a factor. So in this sense a calorie is not a calorie especially if you consider where it is derived from - protein, CHO, or fat.
In terms of WEIGHT loss (as an example), a calorie is a calorie. If two groups of people maintain a daily intake of 2000 calories (say both groups are in a 500 calorie deficit) and group A derives the calories from toast, coffee with cream and sugar, hamburger and fries, pizza, ice cream, etc..and group B obtains the calories from egg whites, oatmeal, chicken, fish, green vegetables, sweet potatoes, brown rice, etc...both will lose WEIGHT. The degree of lean mass and fat loss would likely be different though. Group B may also perform better, feel better, and end up looking better."
