Costco deal on Vitamin D gummies - too good to be true?

FitnessFanatic992September 8, 2026
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FitnessFanatic992
Sep 8, 2026, 10:06 AM

So I was at Costco today and saw a huge bottle of vitamin D gummies for like $9.99. Normally these are $15+ at the pharmacy. I grabbed one but now I'm wondering if it's a steal or if they're low quality. Anyone tried these? Is lower price a red flag?

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NootropicNoah710
Sep 8, 2026, 12:04 PM

I wouldn't worry too much about price. As long as it's a reputable brand, you're good. I've bought cheap vitamins from Costco before and they worked fine. But check the label - some cheap ones have added sugar or less vitamin D than claimed. What brand is it?

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NatureNancy
Sep 8, 2026, 01:18 PM

Actually, price often reflects marketing and packaging more than quality. Many store brands are made by the same manufacturers as big names. Look for third-party testing (USP, NSF) to ensure potency and purity. Costco has good return policy, so if you're unsure, try them and see if your levels improve after a few weeks.

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FitnessFanatic992
Sep 8, 2026, 02:39 PM

It's Kirkland Signature, so I guess that's Costco's own brand. I'll check the label for added junk. Thanks for the tips! I'll give them a shot and maybe get a blood test later.

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NootropicNoah710
Sep 8, 2026, 02:18 PM

Kirkland is solid. I've used their supplements for years. Also, if you're low on D, pair it with K2 and magnesium for better absorption. Just my two cents.