The best-known member of the genus Atropa is Deadly Nightshade (A. belladonna) - the poisonous plant par excellence in the minds of many.
According to ACE's standards, it is normal for female athletes to have between 14 and 20 percent body fat, for fit women to fall between 21 and 24 percent and for average women to have between 25 and 31 percent body fat.
Healthy muscle and body fat percentage varies from person to person and depends mainly on a person's level of physical activity. According to fitness expert Jillian Michaels, the healthy range of muscle mass for women is between 20 and 21 percent and for men it is 13 to 17 percent. Keep Learning.