Source Naturals Manganese
Amazon.comPosted 5 months ago
Our verdict
Source Naturals Manganese works out to $0.04 per serving of manganese, at 10mg per serving in tablet form. That puts it the cheapest quarter of the 11 manganese products we can price per dose, where the typical serving costs $0.09, a Value Index of 2.0 where the median product is 1.0. One container lasts 250 days at the label dose of 1 serving a day, about $1.33 a month. We could not verify a third-party certification for Source Naturals in a public registry. Worked out from the current retail price as of 2026-11-14; confirm the live price on Amazon.com before buying.
Questions about this product
- How much does one serving of Source Naturals Manganese cost?
- $0.04 per serving, which is 10mg of manganese in tablet form, against a typical $0.09 across the 11 manganese products we can price per dose, a Value Index of 2.0 where the median product is 1.0. Worked out from the current retail price as of 2026-11-14, not the sticker price.
- How long does one container of Source Naturals Manganese last?
- 250 days at the label dose of 1 serving a day, which is about $1.33 a month.
- Is Source Naturals third-party tested?
- We could not verify a certification for Source Naturals in the USP, NSF or Informed-Sport public registries. We do not count a "lab tested" claim printed on a label as third-party testing, and an uncertified brand is not automatically worse.
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The silence is deafening
Lead with cost-per-dose, not vibes.