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Products / Magnesium / Glycinate

Bulk Nutrients Magnesium Glycinate Capsules

Two capsules give you 180 mg of magnesium, and it’s sold as a sports food. The figures add up. It costs $0.27 per 100 mg at the regular price.

Label says180mg magnesium a serve, per brand page
Our maths184.7mg magnesium a serve
Cost per 100 mg$0.27Regular price, Bulk Nutrients (direct), 27 Oct 2026

adds up no testing claim found

What the brand’s product page says

Compound, as written
“Magnesium Glycinate 1310 mg, equivalent to Magnesium 180 mg”
Compound per serve
1,310 mg
Magnesium per serve
180 mg
Serve
2 capsules, 60 serves per pack, capsule
Register entry
Sold as a sports food: the Bulk Nutrients product page describes it as a ‘Formulated Supplementary Sports Food’, a food category under the Food Standards Code, not a listed medicine, so no AUST L number applies.
Read from
Bulk Nutrients product page, 120 capsules (opens in a new tab) (brand site), read 27 Oct 2026

How much of the compound is magnesium

Only part of each compound is magnesium. Here’s that share for each one. Some compounds come in several versions, for example with water in the crystals. Each version has its own share.

  • Magnesium glycinate: 14.1 % magnesiumThis name covers more than one version, and the brand’s product page doesn’t say which. We use our standard one.

Our maths

Magnesium glycinate 1,310 mg → about 184.7 mg magnesium ✓

Show the chemistry
1,310 mg × 0.141 = 184.7 mg

Version used: magnesium glycinate (same salt as bisglycinate) (Mg(C2H4NO2)2, molar mass 172.42 g/mol), share 0.141. reference (opens in a new tab)

Other versions: magnesium glycinate dihydrate 0.1166.

Do the figures agree?

stated 180 mg vs our maths 184.7 mg
difference -2.5 % (band ±15 %)

adds up

Yes. The brand’s product page gives 1,310 mg of compound and 180 mg of magnesium per serve. Our maths: 1,310 mg × 0.141 = about 184.7 mg. That’s within 15 % of the stated figure. Why it matters to you: the cost per 100 mg rests on figures that agree. It isn’t a lab test of what’s inside, but it’s the check a label can pass.

Third-party testing

no testing claim found

No testing claim or certificate on the brand’s product page. That’s true of most products here, and it isn’t a mark against this one. If batch testing matters to you, ask the brand.

Our note: The product page makes no testing claim. Its HASTA (Human and Supplement Testing Australia) results page and certificate page (opened 27 Oct 2026) list whey protein, creatine and others, not these capsules.

Prices, and what the magnesium costs

Prices are the recommended retail price (RRP), or the regular shelf price where no RRP is shown. Sale and member prices aren’t used, so you may pay less.

Price used: Regular price $29.00 · 120 capsules · Bulk Nutrients (direct) · 27 Oct 2026.

$29.00 ÷ 60 serves = 48.3c a serve
48.3c ÷ 180 mg × 100 = $0.27 per 100 mg of magnesium

We use the stated magnesium, not our maths, because that’s the figure you’re given. The price used is the lowest current RRP or regular price we’ve seen, at any shop. The list starts with the lowest current cost per 100 mg; earlier prices follow. Rows marked “Earlier observation (price type not recorded)” were seen up to 27 Oct 2026, before we switched to RRP. Some were sale prices. They stay here, greyed, as history, and no figure uses them.

Every price we’ve seen for this product: current RRP or regular prices first, lowest cost first, then earlier prices
RetailerPrice typePrice and packPer servePer 100 mgSeenNote
Bulk Nutrients (direct) (opens in a new tab)price used aboveRegular price$29.00 for 120 capsules48c$0.2727 Oct 2026Brand store. 120 capsules = 60 two-capsule serves. Page shows '120 capsules = $29.00' with no RRP, was or sale wording; GST inclusive. Multi-buy '4 x 120 capsule containers = $27.00 each' (not used).
Bulk Nutrients (direct) (opens in a new tab)not usedEarlier observation (price type not recorded)$29.00 for 120 capsulesnot usednot used26 Oct 2026120 capsules = 60 two-capsule serves. GST inclusive. Multi-buy: 4 x 120 at $27.00 each.

Notes

The Bulk Nutrients page calls it a ‘Formulated Supplementary Sports Food’, a food, not a listed medicine, so no AUST L number applies. Its panel gives the figures per 2-capsule serve.

Sources we opened

Added 26 Oct 2026. Figures last read 27 Oct 2026.