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.
For women ages 19 to 29, anything under 19 percent is considered low. Women ages 30 to 39 should be under 21 percent, while women in their 40s should be under 24 percent to be classified as low body fat. Women 50 years old and older who are less than 28 percent body fat are included in the low body fat category.