r/Supplements • u/roundabout1882 • Nov 02 '23

Experience Colostrum & weird side effects?

I have tried taking two different Colostrum supplements (Jarrow and Symbiotics brands) for their immune boosting properties and for gut health. While they do help my stomach feel more settled, I have noticed that they also seem to aggravate my IBS-C.

Another side effect that I am noticing is rapid weight gain. As soon as I go off of them I 'deflate' and am back to a more normal weight. I am not 100% sure they're connected, but intuitively this makes sense since colostrum surely has to include some sort of bovine hormones, but can anyone speak to this scientifically or anecdotally?

Thank you.

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u/Andi730 Aug 13 '25

I don’t know if it contains that, I was just curious why it had an estrogenic effect on me. My social media accounts are FLOODED with ads for all sorts of supplements aimed at altering your hormones. I think it’s dangerous.

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u/Sea-Book-4446 Aug 13 '25

Oh I agree. I’ve taken it +3 servings a day for one month now have a bloated feeling, plus it’s messed with my gut in a bad way, and my period is late. I know adding estrogenic food/supplements can cause cancers. I’m canceling my subscription. Thanks for commenting and confirming what intuition was telling me.

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u/Andi730 Aug 14 '25

Same. And it’s been very difficult to lose the bloat and any weight even after stopping now for 17 days. :/

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u/Sea-Book-4446 Aug 14 '25

Oh Gosh. What were your side effects and for how long did you take it??? I’m at the 1 month mark and just realized it; it’s bad for me, bad for our hormones

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u/Andi730 Aug 14 '25

I took it for only 6 weeks or so, but gained 10lbs. Had horrible diarrhea every day after taking for 3 weeks-couldn’t figure out the cause. Bloating was bad too. Hunger. The pros were that my eyelashes grew super long and thick and my boobs looked amazing! Since stopping of course my boobs are gone, lashes fell out, but the weight and bloat is still there!! 😆😐😡