Whey Protein - First Endurance

Whey protein isolates absorb rapidly at around 30 minutes or less while whey protein concentrates absorb at around 60 minutes. Both are considered “fast-acting” which makes them ideal for pre- and post-workout drinks. Casein on the other hand absorbs much slower at about 4 hours making it a “slow-acting” protein and ideal for before ... ................
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