Supplement Scholar
Compound

Bovine Colostrum

Buy on Amazon ↗

Affiliate link: we may earn a commission at no extra cost to you. Disclosures

Bovine Colostrum. First milk with growth factors.

How it works. IgG, IGF-1, growth factors.

What the research supports. 1 graded claims. Strongest: Reduces URTI in athletes (moderate).

How much to take. Typical dose: 10–20 g.

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

Stacking. Pairs well with Vitamin D3 + K2, Zinc, Multi-strain probiotic.

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 Bovine Colostrum. Anecdotes are not medical advice.

Bovine Colostrum. First milk with growth factors.

No single structure

What it is

First milk with growth factors.

Food sources

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

Goals

Immune Function

How it works

IgG, IGF-1, growth factors.

Pathways

  • IgG, IGF-1, growth factors

Effects

  • ↓URTI in athletes decreases

What the research supports

Reduces URTI in athletesmoderate

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
10–20 g
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.
Shop Bovine Colostrum on Amazon ↗

As an Amazon Associate I earn from qualifying purchases. Look for USP, NSF or Informed Sport seals before you buy.

Side effects & interactions

Common side effects

  • Well tolerated

Medication interactions

Prescription medications (general)minor

Always disclose Bovine Colostrum 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

Common forms

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

Key studies

8 studies cited in total.

PubMed: Bovine Colostrum — Reduces URTI in athletes ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Bovine Colostrum and "Reduces URTI in athletes". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Bovine Colostrum — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

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

PubMed: Bovine Colostrum — meta-analysis ↗
Systematic review · PubMed (NLM) · 2026

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

Discussion

Loading discussion…