Immunity/Digestion/Performance

Bovine Colostrum

First milk from cows rich in antibodies and growth factors that may support immune defenses and gut barrier function in active adults.

Bovine Colostrum

First milk from cows rich in antibodies and growth factors that may support immune defenses and gut barrier function in active adults.

score

evidence

Caution

risk

Proven Benefits

01Supports immune function

02Supports gut barrier integrity

03May improve exercise recovery

04May reduce inflammation markers

05May support lean body mass

06May increase IGF-1 levels

Chemical Forms

Recommended

Standardized whole colostrum powder (20-30% IgG)
IgG-concentrated colostrum extract

Avoid

Undefined IgG concentration (potency varies widely)
Skimmed colostrum with removed fat/growth factors (may reduce efficacy)

Expert Note

Whole colostrum standardized to at least 20-30% IgG ensures a consistent immunoglobulin dose matching studied protocols. Fat-containing fractions carry growth factors like IGF-1 and TGF-β, which may contribute to gut-barrier effects. Highly skimmed or undefined products can deliver variable potency and fewer bioactive lipids.

Protocol

Amount

10-20 g

Frequency

Once daily, or split into two doses

When

Take on an empty stomach when possible; if using for exercise-related gut stress, dose 30-60 minutes pre-workout.

Condition-Based Dosing

Athletes during high-intensity training blocks

10-20 g daily, standardized to ≥20% IgG— Higher doses up to 60 g have been studied but are impractical and costly.

General immune support in healthy adults

5-10 g daily— Lower maintenance dose with uncertain benefit for sedentary individuals.

Safety & Limits

Upper Safe Limit

No established UL; doses up to 60 g/day have been studied short-term without serious adverse effects

Cycling

Safe for continuous use

Contraindications

Dairy or cow's milk protein allergy — contains lactose and milk proteins

Lactose intolerance — may cause GI symptoms despite lower lactose than milk

Pregnancy or breastfeeding — limited safety data, avoid unless prescribed

Organ transplant recipients or immunosuppressive therapy — theoretical immunomodulation risk

Synergies

Zinc

Zinc supports mucosal immunity and tissue repair, complementing the immunoglobulin activity of colostrum.

Vitamin D3

Vitamin D3 regulates innate and adaptive immune responses, potentially synergizing with colostrum’s immunomodulatory effects.

Avoid Combining With

✕Hot beverages or liquids (heat denatures immunoglobulins — use cool water)
✕Coffee or tea with dose (tannins may complex with proteins and reduce activity)

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