Products · Colostrum & organ supplements · California Gold Nutrition
California Gold Nutrition Colostrum Powder
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A plain colostrum powder that states 200 mg of IgG in each 1 g scoop, first-12-hour collection and low heat, for about $0.13 a scoop. Testing is the maker’s word only, and 20% IgG is below the 25 to 30% our guide cites.
Best for Adults who want a low-cost colostrum powder that states its IgG, and who will take the maker’s word on testing or ask for a certificate.
- Our quality rating
- Fair (3 of 5)
- Price range
- Budget
- Size
- Powder, 7.05 oz (200 g); a serving is one 1 g scoop
approx. $26 for 200 g (200 servings)
See it on California Gold Nutrition’s site →We are not affiliated with California Gold Nutrition. This link goes to the maker’s own page, with no tracking code. How we're funded.
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How we evaluated it
Why we chose it What put it on our list
- It states its IgG: the label shows 1 g of colostrum with 200 mg of immunoglobulin G per 1 g scoop. Our colostrum guide tells readers to pick a product that gives this number, and most colostrum powders we looked at do not.
- It says when the colostrum was collected: within the first 12 hours, when the page says immunoglobulin levels are highest. It is also “low heat processed”. A 2020 lab study of 20 commercial colostrums found six-fold differences in activity and linked lower activity to later milkings and to heat.
- The label is short: colostrum, with non-GMO sunflower lecithin the only other ingredient, and no blend.
- At about $26 for 200 servings it costs about $0.13 a gram. At 6.4 g a day, the lowest immune-trial dose in our guide, a tub lasts about 31 days, roughly $0.85 a day.
Trade-offs What to weigh before you buy
- Testing is not shown. The page says the colostrum is laboratory confirmed free of antibiotics and the plant is FDA-registered, third-party audited and cGMP, but names no lab and shows no heavy-metal, pathogen or IgG report. An “iTested Verified: Coming Soon” badge means no result is posted yet.
- The 20% IgG is a “conservative average” from the supplier’s past results and can vary by batch. Our guide cites 25 to 30% IgG as a good target, so this is below it.
- No country, farm or grass-fed claim: only USDA Grade A dairy cows not given rBST. Collection within 12 hours is longer than the 6 hours our guide cites.
- One scoop is 1 g. In the trials our guide covers, gut-permeability studies used about 0.5 to 3 g a day and immune studies 6.4 to 20 g, so a single scoop is at the low end. It contains milk: avoid it with a dairy allergy, and ask a clinician first in pregnancy.
What to know Details worth knowing first
Bovine colostrum is the first milk after a cow calves. Our colostrum guide finds the best evidence is for lower gut permeability in athletes, with immune findings from small athlete trials, and it advises choosing a product that states its IgG on the label. Few do. This one does: 200 mg of IgG in each 1 g scoop.
We list it as a budget option, not as proof of any health claim. The label gives the IgG, says the colostrum was collected in the first 12 hours and low-heat processed, and adds only sunflower lecithin. A 2020 lab study of 20 commercial colostrum products found large differences in activity, so collection time and heat are worth asking about.
What we could not confirm is where the cows are, how they are fed, and whether any batch is tested for metals or pathogens. The page names no lab and shows no certificate. If that matters to you, ask the seller for a certificate of analysis for your lot.
Quality & testing How it measures up against our checklist
| What we checked | What we found |
|---|---|
| Named sourcing Maker’s claim | USDA Grade A dairy cows not given rBST, says the page. It names no country or farms and makes no grass-fed claim. |
| Tested by lot Not verified | The page says the colostrum is laboratory confirmed free of antibiotics and the facility is FDA-registered, third-party audited and cGMP-compliant. It shows no heavy-metal or pathogen results, no lab name and no certificate. |
| IgG per serving Maker’s claim | Label: colostrum 1 g, immunoglobulin G 200 mg, per 1 g scoop (200 servings). The maker calls 20% a conservative average from its supplier’s results, which may vary by batch. |
| Collection and processing Maker’s claim | Collected within the first 12 hours and low-heat processed, says the page. The drying method and temperature are not stated. |
| A plain label Maker’s claim | Colostrum and non-GMO sunflower lecithin, which the page calls a lipid coating. Contains milk. No proprietary blend. |
What the labels mean
- Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
- Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
- Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.
Sources Where our facts come from
- California Gold Nutrition Colostrum, 7.05 oz (200 g): iHerb product page. Maker’s page. iHerb blocks automated fetches, but the page opens in a browser. On 22 October 2026 it showed the Supplement Facts and claims quoted here, and $26.22. The brand’s own web address, californiagoldnutrition.com, forwards to iHerb. Open ↗
- Vitacost listing with the Supplement Facts, claims and price (22 October 2026). Independent source. A retailer’s copy of the label text. Open ↗
- Playford, Cattell and Marchbank, PLoS ONE 2020: variability in bioactivity of commercial bovine colostrum. Independent source. Laboratory and rat study of 20 commercial products. It is background for why collection time and heat matter, not a test of this product. Open ↗
Where to buy Other stores and the prices we saw
- Vitacost approx. $26 for 200 g. Vitacost says it sources from brands or authorized distributors. iHerb’s own page showed the same label text and a price of $26.22 when we opened it in a browser on 22 October 2026.
Prices as we saw them on October 22, 2026. They change often. These links carry no tracking code and earn us nothing.
Alternatives Other options to compare
- Symbiotics Colostrum Plus capsules States 25% IgG (235 mg in 945 mg of colostrum) and first-milking colostrum. About $0.41 to $0.54 a serving of two capsules.
- California Gold Nutrition Colostrum capsules, 240 The same 20% IgG in a capsule: two capsules give 1 g of colostrum and 200 mg of IgG. About $21 at Vitacost for 120 servings.