My brother just turned 41 and he is a bigtime athlete. He has raced motocross since he was 16 and now he is too old to be competative at that he has got into Triathlons and Marathons. Wants something to help get more strength to help his endurance. Also wants to get a little more quickness/agility I heard a lot of the cage fighters ( dont want to use any of the initials for the federations) use winny for this but a few on here said it could screw up his joints. I know there is better options with injectables but he will not go that route.
He is
41yrs old
157#
7% BF
Eats perfect!!
Any thoughts????