from the article: “Any time people lose weight, one-quarter to one-third of that weight can be muscle, and the faster we lose, the more likely we are to lose m

from the article: “Any time people lose weight, one-quarter to one-third of that weight can be muscle, and the faster we lose, the more likely we are to lose muscle. While 20% reduction in muscle mass seems normal for someone losing weight, the problem is the length of time in which this muscle loss occurs,” said Kumar.