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Compound

Micellar Casein

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Micellar Casein. Slow-digesting milk protein.

How it works. Forms clot in stomach for slow amino release.

What the research supports. 1 graded claims. Strongest: Overnight muscle preservation (moderate).

How much to take. Typical dose: 30–40 g pre-bed.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with Creatine monohydrate, Whey or EAAs, Magnesium glycinate.

Common forms. Available as Capsule or softgel, Powder, Sublingual or buccal, Liposomal liquid.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Micellar Casein. Anecdotes are not medical advice.

Micellar Casein. Slow-digesting milk protein.

Key compound: L-leucineC6H13NO2 · 131.17 g/mol

What it is

Slow-digesting milk protein.

Food sources

Endogenously produced or biosynthesized moleculeStandardized pharmaceutical- or food-grade supplementCombined with cofactors that improve absorption or activity

Goals

Muscle GrowthSleep & Recovery

How it works

Forms clot in stomach for slow amino release.

Pathways

  • Forms clot in stomach for slow amino release

Effects

  • +Overnight muscle preservation supports

What the research supports

Overnight muscle preservationmoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
30–40 g pre-bed
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodWith a meal containing fat for fat-soluble compounds; otherwise either.
Best formMost evidence is based on the capsule or softgel form.
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Side effects & interactions

Common side effects

  • Lactose

Medication interactions

Prescription medications (general)minor

Always disclose Micellar Casein use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • Creatine monohydrateFoundational support for strength, power, and lean mass.
  • Whey or EAAsProvides amino acid substrate for muscle protein synthesis.
  • Magnesium glycinateComplementary GABAergic calming and improved sleep architecture.

Common forms

  • Capsule or softgel
  • Powder
  • Sublingual or buccal
  • Liposomal liquid

Key studies

8 studies cited in total.

PubMed: Micellar Casein — Overnight muscle preservation ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Micellar Casein and "Overnight muscle preservation". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Micellar Casein — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Micellar Casein and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Micellar Casein — meta-analysis ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Micellar Casein and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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