HAPPY GUTS

Bovine colostrum 2,300 mg standardized to 25% IgG — 575 mg of immunoglobulin G per scoop.*

90-Day Guarantee

Try it for 90 days. If it isn't right, we'll refund the unused portion — no return shipping, no hassle.

  • GMP Facility
  • Made in USA
  • 90-Day Guarantee

Colostrum is the first milk produced after calving, rich in immunoglobulins, growth factors, and antimicrobial peptides. HAPPY GUTS provides 2,300 mg of bovine colostrum standardized to 25% immunoglobulin G — 575 mg of IgG per scoop.*

Immunoglobulin G:

  • Colostrum is rich in IgG, the most abundant antibody class. Each scoop provides 575 mg.*

What the research shows:

  • A meta-analysis of 10 randomized controlled trials measured reduced intestinal permeability following bovine colostrum supplementation.*

Immune support during physical stress:

  • Trials in adults undergoing regular exercise training have studied bovine colostrum's effects on upper respiratory symptoms.*

A daily dose within the studied range:

  • Each scoop provides 2,300 mg of bovine colostrum. Human trials have used doses from roughly 500 mg to 60 g daily.

Gut & Immune Support

HAPPY GUTS bovine colostrum powder container by Happy Cells Research Labs

  • The intestinal barrier*

    The gut lining acts as a selective barrier. Bovine colostrum has been studied for its effects on intestinal permeability, a measure of that barrier's function.*

  • Measured in human trials*

    A meta-analysis of 10 randomized controlled trials found bovine colostrum significantly reduced urinary lactulose/rhamnose ratio, a marker of intestinal permeability.*

  • Full label transparency

    2,300 mg bovine colostrum standardized to 25% IgG, printed on the label. No proprietary blends.

THE RITUAL

One scoop. Every morning.

Mix one scoop (2.3 g) into 6-8 oz of cold water, milk, or a smoothie. Do not use hot liquid, which can degrade immunoglobulins.

Human trials of bovine colostrum have typically run 8 to 12 weeks.

How It Works

Colostrum is where immunity starts.

Colostrum is the first milk produced after calving. It is rich in immunoglobulins, growth factors, and antimicrobial peptides.

Immunoglobulin G is the most abundant antibody class in colostrum. HAPPY GUTS is standardized to 25% IgG, which delivers 575 mg per 2,300 mg scoop.*

A scoop of HAPPY GUTS bovine colostrum powder

THE FORMULA

Made with bovine colostrum · Contains milk · Manufactured in a GMP-certified, FDA-registered facility in the USA.

The Research

Human evidence for bovine colostrum

A systematic review and meta-analysis of 10 randomized controlled trials found that bovine colostrum supplementation significantly reduced the 5-hour urinary lactulose/rhamnose ratio, a validated marker of intestinal permeability. (Dig Dis Sci 2024;69(4):1345-1360. PMID 38361147)

A meta-analysis of 5 randomized controlled trials in 152 adults over 8 to 12 weeks found bovine colostrum supplementation significantly reduced upper respiratory symptom days compared with placebo. (Jones AW, March DS, Curtis F, Bridle C. BMC Sports Sci Med Rehabil 2016;8:21)

What the evidence does not show

Heterogeneity between trials was high, and effects on long-term outcomes have not been established. Happy Cells makes no claims about preventing or treating any illness.

These studies tested the ingredient, not HAPPY GUTS.*

FAQ

What people ask about colostrum

  • Human trials have used bovine colostrum at doses ranging from under 1 gram to 60 grams daily. HAPPY GUTS provides 2,300 mg per scoop, standardized to 25% IgG. What matters more than total grams is the standardized immunoglobulin content.

  • Immunoglobulin G is the most abundant antibody class in colostrum. Standardizing to 25% IgG means each 2,300 mg scoop delivers 575 mg of IgG. Colostrum products without a stated IgG percentage may vary between batches.

  • Bovine colostrum has been used as a food and studied in human trials without a consistent pattern of serious adverse effects. It contains milk and is not suitable for anyone with a milk allergy.

  • Anyone with a milk allergy or severe lactose intolerance should avoid it. Colostrum has not been studied in pregnancy or breastfeeding. Anyone taking prescription medication or managing a medical condition should consult a qualified healthcare professional.

  • Not recommended. Heat can degrade immunoglobulins. Cold or room-temperature liquids preserve the IgG content.

  • Both come from milk, but colostrum is the first milk produced after calving and contains immunoglobulins, growth factors, and antimicrobial peptides that mature milk does not. Whey is a protein fraction of mature milk.

  • Published trials have typically run 8 to 12 weeks. Individual results vary and are not guaranteed.

  • No. Bovine colostrum used in supplements is surplus collected after calves have been fed.

90-Day Guarantee

Try it for 90 days. If it isn't right, we'll refund the unused portion — no return shipping, no hassle.

*Statements on this website have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure or prevent any disease. If you are taking prescription medication, have a medical condition, or are pregnant or nursing, consult your physician prior to use. Not for children. Results may vary.