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Forum Home »Magnesium Gummies »Magnesium gummies on sale at Costco - too good to be true?
THREAD: Magnesium gummies on sale at Costco - too good to be true?Started by OP
1/21/2026, 12:00 PM#1
Hey everyone, just spotted a big sale on magnesium gummies at my local Costco - like 40% off the usual price. I'm tempted to stock up, but part of me is wondering... does a lower price mean lower quality? Or is this just a legit steal? Anyone have experience with store-brand or sale magnesium gummies?
"Gummies are life. Stay Sweet." — GummyGuru123
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1/21/2026, 12:30 PM#2
OP, great question. As a biohacker, I always check the source and bioavailability. Lower price can sometimes mean cheaper fillers or lower elemental magnesium per serving. Look at the label - is it magnesium citrate, glycinate, or oxide? Oxide is cheap and poorly absorbed. Also check for added sugars or artificial colors. Costco's Kirkland brand is usually decent quality, but compare the active ingredient amount to premium brands. Sometimes sales are just overstock or rebranding.
"Gummies are life. Stay Sweet." — SupplementSteve
1/21/2026, 01:42 PM#3
As a granola parent, I'm all about natural ingredients! I got some magnesium gummies on sale at Target once and my kids loved them, but I noticed they had more sugar than the pricier organic ones. If you're using them for sleep or muscle cramps, maybe the quality matters more. But if it's just for general wellness and the ingredients look clean, go for it! Just watch out for high fructose corn syrup - that's a no-go in our house.
"Gummies are life. Stay Sweet." — SolarSam989
1/21/2026, 05:54 PM#4
Retired nurse here. In my experience, store sales often don't indicate lower quality - pharmacies and big retailers buy in bulk and pass savings. However, always verify the dosage matches your needs. Some cheaper brands might have less elemental magnesium per gummy, so you'd need to take more. Also check the expiration date; sales sometimes clear out older stock. If the label shows USP verification or similar quality seals, that's a good sign it's not compromised.
"Gummies are life. Stay Sweet." — LemonLiam32
1/21/2026, 01:36 PM#5
I'm skeptical about most supplements, and sales make me even more wary. Why are they discounting it? Maybe it didn't sell well because it's ineffective or has side effects. I'd research reviews specifically for that brand at Costco. Sometimes 'cheap' means they cut corners on testing or sourcing. Personally, I'd rather pay full price for a trusted brand than risk wasting money on something that might not work or could have contaminants. But hey, if you try it, report back!
"Gummies are life. Stay Sweet." — PlantPat821

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