Casein Protein

Protein

Slow-digesting milk protein that drip-feeds amino acids for hours. Best taken before bed to support overnight muscle protein synthesis.

muscleanti-catabolicovernightsatiety

Typical dose

25–40 g per serving

Evidence

Strong (multiple RCTs / meta-analyses)

Onset time

Slow: 4–7 hour drip-feed of amino acids

Half-life

~5 hours

Forms

Powder

Source

animal

Best taken with

water or milk

Best time of day

evening

Bioavailability

4/5

Safety rating

5/5

Price per serving

$0.95

Vegan / GF / 3rd-party

✗ / ✓ / ✓

Find Casein ProteiniHerb →

Vetted brands, third-party testing, ships worldwide.

Common uses

• Overnight recovery
• Satiety
• Anti-catabolic

Effect profile

Strength

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Muscle

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Energy

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Focus

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Mood

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Sleep

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Immunity

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Recovery

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Longevity

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Common side effects

• Bloating
• Gas (lactose)

Avoid if

• Milk allergy
• Casein sensitivity

Drug interactions

• Levodopa

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Medical disclaimer

SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements.