found at Amcal
EAAs must be supplied from dietary sources and are not manufactured by the body. Restricted or inadequate diets can impair the dietary intake of EAAs, and supplementation can help restore the balance. Deficiencies in EAAs can lead to loss of muscle tissue or tone. Active people may require high levels of EAAs to achieve specific sporting or fitness benefits. Recent studies indicate that EAAs are best consumed during or after training to assist muscle tissue growth.