Men chasing muscle gain typically need 1.6–2.2g of protein per kilogram of bodyweight per day: and a single training session can demand 30–40g in one sitting to fully trigger muscle protein synthesis. The picks below all deliver at least 24g of complete protein per scoop, lean on proven whey blends, isolates and casein, and are sorted by total protein per tub. That means more grams per dollar, more servings per month, and fewer trips to restock.
Meta-analyses by Morton et al. (2018) and the ISSN position stand both land on the same target: 1.6 to 2.2 grams per kg of bodyweight per day: about 0.7–1.0g per pound: to maximise hypertrophy in trained lifters. Going higher offers no extra benefit; going lower leaves gains on the table.
Split that across 4–5 meals of 30–40g, with one within 2 hours of training. A 24g scoop of whey makes hitting daily numbers far cheaper and faster than chicken alone. Add a slow-digesting casein scoop before bed for an extra 7-hour drip of amino acids while you sleep.
Most lifters do well with 1–2 scoops (24–48g) per day on top of solid food. Use it to bridge the gap between what your meals deliver and your daily 1.6–2.2g/kg target. Going beyond 50g/day from powder usually means you're under-eating real food: fix that first.
Whey blends like ON Gold Standard are the all-rounder: fast, lean, affordable. Pure whey isolates (Dymatize ISO100, Rule 1 R1) are leaner and faster but cost more. Casein is the night-time tool: 7-hour digestion makes it ideal pre-bed for overnight muscle preservation.
Only if you genuinely can't eat enough calories from real food. Most mass gainers are 70% maltodextrin (cheap sugar). A better play is two whey shakes a day plus an extra meal: same calorie surplus, far better food quality. We've excluded mass gainers from this page for that reason.
No. Whey protein has no effect on testosterone levels and does not cause hair loss in healthy men. The myth comes from low-quality early-2000s observational studies on subjects taking other supplements alongside protein. Whey is a refined dairy food: your body treats it like the chicken or milk you'd otherwise eat.