Optimum Nutrition Gold Standard 100% Whey Protein FAQ's
Everything you need to know before getting started.



The most impactful time is within 30–60 minutes after training — the window when your muscles are most primed to absorb protein and begin the recovery process. It can also be used as a high-protein snack between meals any time you need to top up your daily protein intake. Consistent daily protein consumption matters more than perfect timing, so work it into whatever part of your routine you'll stick to.
Whey protein isolate is the most filtered form of whey protein — it goes through additional processing to remove most of the fat and lactose, leaving a higher concentration of pure protein per gram. It also digests faster than whey concentrate, meaning the amino acids your muscles need reach your bloodstream more quickly after training. Gold Standard leads with isolate as its primary protein source rather than the less refined concentrate used by many competing products.
BCAAs — branched-chain amino acids — are three specific amino acids (leucine, isoleucine, and valine) that your muscles use directly for repair and recovery after training. Leucine in particular acts as the key trigger that signals your body to start building new muscle tissue. The 5.5g of BCAAs in every Gold Standard serving occur naturally from the whey itself, not from synthetic additions — meaning they come packaged with the full amino acid profile your muscles need.
Both. Endurance athletes need protein just as much as strength athletes — the muscle breakdown from long training sessions and back-to-back training days requires consistent protein intake to repair and rebuild. Gold Standard's fast-digesting isolate formula makes it an ideal post-workout protein for runners, cyclists, triathletes, and any athlete logging serious training volume.
