Colostrum Dosage: How Much to Take (2026)
Most colostrum labels say 1 to 3 g a day, about one scoop. The small trials used 20 to 60 g a day. What matters most is the IgG, the antibodies in colostrum: our pick's 2 g serving at 50% IgG gives about 1 g.
Based on published research, not medical advice. Colostrum is milk: skip it if you have a cow’s-milk-protein allergy. Pregnant, have a weak immune system or take medicines? Ask your doctor first.
Ready to buy:
Vitamatic Bovine Colostrum Powder, 50% IgG$0.67 a 2 g serving. At least 50% IgG, the lowest cost per gram of IgG ($0.67) of any colostrum that states it. Why it is our pick.
It never changes the pick. Costs are brand prices, checked October 18, 2026.
Which colostrum is right for you?
One scoop a day is what most labels suggest. These are the ways to get more out of it.
Want an outside check of what is in the tub?
Codeage Bovine Colostrum Powder is on NSF/ANSI 173, which checks that the tub holds what the label says and has no harmful levels of contaminants. Its scoop is 1 g, so take 2 scoops to match our pick's 2 g serving. The label does not state the IgG.
Codeage Bovine Colostrum Powder
$0.92 for 2 g (2 scoops)
Prefer capsules? You need six.
Most colostrum capsules hold 0.5 g, so one capsule is a quarter of our pick's 2 g serving. Codeage Colostrum Capsules list 6 capsules as a serving (3 g) and are on NSF/ANSI 173. The label does not state the IgG.
Codeage Colostrum Capsules
$1.67 for 6 capsules (3 g)
Already have a tub? Check its IgG.
Find the IgG % on the label and multiply it by the grams in a scoop. No IgG % on the label means you cannot tell how much you get. The calculator below does the math and the cost per gram.
Allergic to milk? Skip it.
Colostrum has the same casein and whey proteins as milk, and people with a milk allergy have reacted even to colostrum creams (Porcaro 2019). Most people who are lactose intolerant handle it, because it is low in lactose.
How much colostrum per day
The trials that used the most were studies of gut leakiness and hard exercise. An 8-week trial in runners gave 60 g a day (Buckley 2009). Their results were mixed, so no dose has a known effect. A higher-IgG powder gets you more of the active part per scoop.
How to take it
- Mix powder into a cool or warm drink. High heat can break down the IgG, so do not stir it into very hot coffee.
- Take it any time of day. No study shows one time works better.
Work out the IgG in any colostrum
Enter the numbers from any colostrum label. You will see the grams of IgG in a serving and the cost per gram of IgG. Leave IgG blank if the label does not state it.
Questions people ask
How much colostrum should I take a day?
Most labels suggest 1 to 3 g a day, about one scoop. The small trials used 20 to 60 g a day, and their results were mixed. If you take colostrum, count the grams of IgG, not just the grams of powder.
How much IgG is in a serving?
Multiply the grams of colostrum by the IgG %. A 3 g scoop of a 30% powder gives about 0.9 g of IgG; 2 g of a 50% powder gives about 1 g. If the label states no IgG %, you cannot work it out.
Related guides
- Best colostrum: every product we scored, ranked by cost per gram of IgG
- Colostrum guide: what it is and what the research covers
Sources
- Buckley JD, et al. “Bovine colostrum supplementation during running training increases intestinal permeability.” Nutrients. 2009. PubMed 22253980
- Marchbank T, et al. “The nutriceutical bovine colostrum truncates the increase in gut permeability caused by heavy exercise in athletes.” Am J Physiol Gastrointest Liver Physiol. 2011. PubMed 21148400
- Playford RJ, Weiser MJ. “Bovine Colostrum: Its Constituents and Uses.” Nutrients. 2021. PubMed 33477653
- Porcaro F, et al. “Anaphylaxis to cutaneous exposure to bovine colostrum based cream.” Asian Pac J Allergy Immunol. 2019. PubMed 29549703
- IgG and serving facts from each brand’s own label; testing list: NSF/ANSI 173.