StackTerminal.Health

BETA

Whey Protein

Complete fast-digesting protein; gold standard for post-exercise muscle protein synthesis.

strengthrecoverymuscledaily

Evidence last reviewed: 04 Apr 2026

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Bottom line

Whey protein is a fast-digesting protein ideal for muscle recovery. It's effective for those looking to enhance strength and lean mass, but not suitable for everyone.

Safety & trade-offs
Known concerns, timing, & interactions
Allergy

Contraindicated in dairy allergy; concentrate contains lactose — use isolate form if lactose intolerant

Tolerance

Bloating and gas in lactose-intolerant individuals

●High  ●Moderate  ● Low / note

Summarized study outcomes with population, design, grade, and effect data.

1 recordBest grade:High
Lean mass / strength gains

Research shows whey protein consistently improves lean mass and strength in resistance-trained adults, especially when consumed post-workout. While the evidence is strong, individuals with dairy sensitivities should consider alternatives.

Biomarkers studied
Metabolic
Lean / Muscle Mass
Performance
Muscle Strength (1RM)
Lean mass / strength gains
Resistance-trained adults · Meta-analyses of RCTs
High

Consistently improves lean mass & strength when combined with resistance training; post-workout timing beneficial.

Dose: 25000 mgDuration: 8–16 weeksTiming: post-workout
Citation: Morton et al. 2018 (meta); Naclerio & Larumbe-Zabala 2016
20–40 g per serving; timing less critical than total daily protein.

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