[Eating fish can both increase muscle and reduce body fat]
Because fish is high in beneficial fats.
Cold water fish (such as salmon) can provide omega 3 fatty acids, which can make muscles more sensitive to insulin (sensitivity of muscles to insulin is beneficial to increasing muscle and reducing fat).
In addition, this fish promotes glycogen stores and amino acids into the muscles, and also helps maintain glutamine stores.
Eat salmon three times a week and you'll get plenty of omega-3 fatty acids.
