Live Amazon price · product details checked 5 September 2026
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We keep Nobi Nutrition Magnesium Glycinate 500mg, Chelated for High Absorption on our magnesium shelf alongside 48 others, and rank it on rating, review volume and live price rather than on the brand. The manufacturer puts it this way: Magnesium Glycinate (Magnesium Bisglycinate) is the most bioavailable form. 500mg of chelated Magnesium Glycinate delivers 90mg of elemental magnesium in its most bioavailable form. The best Magnesium Glycinate is essential for the whole body. It is involved in over 300 crucial biological processes, including nighttime rest & relaxation, immunity, muscle soreness. That is the maker talking, not us, so read it as a claim rather than a finding. On Amazon it sits at 4.5 out of 5 across 5,500 ratings. How that compares with the rest of the shelf is below.
Shelf price range checked · details
Across the 48 rated magnesium products we track, the middle of the pack sits at 4.5 out of 5. This one scores 4.5. Bottom quarter of the shelf. Not a red flag by itself, but similar money buys a better-rated option here, so the case for this one has to come from somewhere else.
5,500 people rated it, where the shelf median is 2,000. A score built on that many opinions is hard to shift and hard to game, which is why we weight review volume rather than ranking on stars alone.
On money, this sits in the middle third of a shelf running from £4.99 to £35.00, with the midpoint around £9.99. That's where most sensible buys land, neither the cheapest thing on the shelf nor the one you pay a name for.
Shelf prices checked · details
Worked out from the 49 magnesium products we track, not from the brand's own claims. How we rank →
Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.
Short on time? Our best magnesium supplement uk shortlist narrows this shelf down to a handful.
