Valine is one of the 20 most common natural amino acids on Earth, and is coded for in DNA. Nutritionally, valine is also an essential amino acid.
... 18 to 24, 33.6% from 25 to 44, 20.6% from 45 to 64, and 9.6% who are 65 years of age or older. The median age is 35 years. For every 100 females there are 96.9 males. For ...