The caloric intake was stupid low.
There was no exercise, especially weight training, done.
Number 2 is of course important, while all types of activity will spare some muscle in beginners on a diet, weight training is probably the best overall approach. And it simply wasn’t a part of mainstream weight loss approaches or research when most of the work was being done.
Even there, number 1 is probably the bigger issue here. Even very obese individuals need a certain amount of dietary protein to prevent muscle loss and when you only feed someone 300 calories/day, even if 100% of it is protein (and most very low calories aren’t because they are set up stupidly), that’s a maximum of 80 grams of protein. Which is usually too little. And is also is why I set up the Rapid Fat Loss Handbook diet by protein intake and not by calories.
You have to meet protein requirements on any diet to limit muscle loss; when researchers started giving obese folks a minimum of 1.5 g/kg lean body mass of protein on a PSMF approach, muscle loss stopped. For a 300 pound individual with 40% body fat, that’s a daily protein intake of 122 grams per day or a minimum of 500 calories. With tagalong carbs and fats, total daily caloric intake will be higher. Simply, setting calories at 300/day won’t allow sufficient protein; yet many of the data points came from exactly those studies.
The caloric intake was stupid low.There was no exercise, especially weight training, done.Number 2 is of course important, while all types of activity will spare some muscle in beginners on a diet, weight training is probably the best overall approach. And it simply wasn’t a part of mainstream weight loss approaches or research when most of the work was being done.Even there, number 1 is probably the bigger issue here. Even very obese individuals need a certain amount of dietary protein to prevent muscle loss and when you only feed someone 300 calories/day, even if 100% of it is protein (and most very low calories aren’t because they are set up stupidly), that’s a maximum of 80 grams of protein. Which is usually too little. And is also is why I set up the Rapid Fat Loss Handbook diet by protein intake and not by calories.You have to meet protein requirements on any diet to limit muscle loss; when researchers started giving obese folks a minimum of 1.5 g/kg lean body mass of protein on a PSMF approach, muscle loss stopped. For a 300 pound individual with 40% body fat, that’s a daily protein intake of 122 grams per day or a minimum of 500 calories. With tagalong carbs and fats, total daily caloric intake will be higher. Simply, setting calories at 300/day won’t allow sufficient protein; yet many of the data points came from exactly those studies.
การแปล กรุณารอสักครู่..
