F Pure Colostrum

Colostrum is bought for two quite different reasons in two quite different doses, so the first thing our naturopaths work out is which conversation you're actually having.

A good fit if

• Gut lining is the reason and you'll take a powder at a trial-comparable dose rather than a capsule
• You train hard, where vigorous exercise is documented to increase intestinal permeability
• You want low-dose day-to-day cover through respiratory season, which a capsule delivers easily
• You handle dairy comfortably, because this is concentrated dairy protein and there's no way around that
• You're after endurance capacity rather than strength. That's the only performance endpoint that moved

Check with us first if

• You're lactose intolerant. Colostrum is a dairy product and residual lactose is product-specific, so the panel is the only way to tell.
• You're buying for a child over 12 months. The paediatric evidence is weak, and a fortified colostrum was no better than plain fortified milk powder for growth.
• The product carries a cold or upper-respiratory claim. Those indications add a second age statement, adults only or not under 2 years without medical advice, and the stricter one governs.
• You're comparing products on IgG percentage. No trial here stratified by it, and no minimum effective level has been established.
• You're looking at goat, ovine or camel colostrum. None has a Schedule 1 entry, and the one camel trial held here was null.
• You're expecting a systemic immune effect. The one immunoglobulin that rose in trials was the one in saliva, while every blood immunoglobulin was unchanged.
• If you take prescription medicines, check with your doctor, pharmacist or our naturopaths before starting.

• Bovine colostrum powder. Best known for: Spray-dried whole colostrum, and the only form Schedule 1 recognises as an active. Absorption: The action in the trials was on gut-lumen and barrier markers rather than on systemic absorption of intact protein. Typical use: The only format that can practically reach the 25 to 45 g a day used in the gut, performance and convalescence trials.
• Colostrum capsules and tablets. Best known for: The same powder, portioned. Commonly 400 mg to 3,000 mg a unit in Australia. Absorption: Never compared with powder in any trial held here. Typical use: Reaches the 0.5 to 1.0 g a day of the triple-blind cold trial easily, and the 3.2 g a day of the antioxidant trial. It cannot reach 25 g a day without an implausible capsule count.
• Chewable colostrum. Best known for: Powder in a chewable base, so it spends longer in the mouth. Absorption: No trial of a chewable form exists here. Typical use: The longer oral contact is mechanism-adjacent reasoning against the saliva and oral-mucosa findings, not evidence. Treat it as a preference.
• Colostrum with added lactoferrin. Best known for: Adds isolated bovine lactoferrin, which is its own separate permitted ingredient with no mandatory warning. Absorption: Lactoferrin was studied at 200 mg a day for inflammation and 35 to 833 mg a day in infant formulas. Typical use: Lactoferrin's own evidence doesn't transfer to colostrum: it cut respiratory infections in infants and children and did nothing in adults.
• Bovine whey immunoglobulin-rich fraction. Best known for: An immunoglobulin-concentrated whey fraction. Not colostrum, despite how it reads on a panel. Absorption: No human trial of it is held here. Typical use: Permitted for oral medicines only, and carries the same under-12-months warning as colostrum.
• Non-bovine colostrum (goat, ovine, camel). Best known for: Marketed as an alternative, with no Schedule 1 entry of any kind. Absorption: Not established. Typical use: The one camel colostrum trial here was null on both its primary endpoints. Don't treat these as interchangeable with bovine.
• Colostrum sold as a food rather than a listed medicine. Best known for: Many Australian colostrum powders carry no AUST L number at all. Absorption: Unchanged. The difference is regulatory, not clinical. Typical use: A food is regulated under the Food Standards Code and may not carry a therapeutic indication. That's why two similar-looking tubs can say very different things.

Reference values. None exists. Colostrum isn't a nutrient, it has no Australian reference value, and it doesn't appear in the NHMRC figures at all.

Typical supplemental range. The trial doses spread across nearly two orders of magnitude, and which end you need depends entirely on why you're taking it. The lowest was 0.5 to 1.0 g a day over 107 days in the triple-blind cold trial. An antioxidant-marker trial used 3.2 g a day for six months, and a null immune trial used 6.4 g. Every trial that moved a gut-barrier, endurance or convalescence endpoint used 25 g, 38 g or 45 g a day. Australian capsules commonly hold 400 mg to 3,000 mg, so two 400 mg capsules a day is 0.8 g. Inside the cold-trial range and nowhere near the rest.

Upper level. No daily cap sits in Schedule 1 against bovine colostrum powder, and no human upper limit has been established in any source held here. The only ceiling reference point is animal: a 90-day rat study of colostrum ultrafiltrate found no treatment-related adverse effects and no target organs at 4,200 mg per kilo of body weight a day, the highest dose tested. That was an ultrafiltrate, not a whole powder, and it isn't a human dosing recommendation.

Worth knowing. Quoting a 20-gram trial result beside a 400 milligram capsule is the single most common way this ingredient gets misrepresented, so it's worth being blunt: match the format to the reason. Australian labels often advertise an IgG percentage, and no trial held here stratified its result by IgG content or established a minimum effective level. So a higher percentage is a specification, not a better-evidenced product. Your needs depend on your age, diet and health circumstances. Talk to one of our naturopaths.

Food first, where the diet allows it.

• Bovine colostrum, the first milkings after calving: the only meaningful dietary source of concentrated colostrum bioactives, and it isn't sold as a retail milk
• Human colostrum: the equivalent for a human infant; a preterm meta-analysis found no difference between bovine and human colostrum on any outcome
• Ordinary cow's milk and dairy: the same proteins at far lower concentration; lactoferrin can be extracted from either milk or colostrum

This list is the part of the page we will not shorten. If any of it applies to you, talk to one of our naturopaths or your doctor before starting.

• Cow's milk protein allergy. Colostrum is concentrated casein and whey; allergic reactions to caseins are a named consideration. Absolute avoid.
• Children under 12 months. Mandatory label warning that it isn't suitable except on the advice of a health professional.
• Children under 2 years, where the product carries a cold or upper-respiratory claim. A second mandatory age statement applies.
• Pregnancy and breastfeeding. The monograph position is to avoid use; safety and efficacy information is lacking.
• Lactose intolerance. Colostrum is a dairy product and residual lactose is product-specific.
• Vegans and anyone avoiding animal-derived products. All colostrum is bovine.
• General tolerability. Minor nausea, wind, loose stools, unpleasant taste and skin rash occur infrequently.
• Preterm infants. A 2025 review concluded colostrum cannot be recommended for them on current evidence.
• No serious medicine interaction is documented, which is an absence of documented interactions rather than a guarantee.
• If you take prescription medicines, check with your doctor, pharmacist or our naturopaths before starting.