Simply Supplements Magnesium: Bisglycinate, Citrate and Triple Complex (UK)

What magnesium does Simply Supplements sell?

Simply Supplements sells four magnesium-only products: Magnesium Bisglycinate 1500mg, Magnesium Citrate Tablets 700mg, Magnesium Triple Complex and Magnesium Tablets 200mg. Its magnesium page also lists combinations with calcium, B vitamins or creatine. Figures below are per daily serving, as each product page stated on 10 November 2026:

Each of these four pages says the product is suitable for vegans and vegetarians and lactose free. “Buffered” means magnesium oxide is mixed in with the named form: the ingredients lists show oxide in the bisglycinate, the citrate and all three forms in the Triple Complex. For what each form is, see our types of magnesium chart.

Simply Supplements Magnesium Bisglycinate 1500mg: the label maths

If you searched for Simply Supplements magnesium glycinate, this is the product. Glycinate and bisglycinate are two names for magnesium bound to glycine: more in magnesium glycinate vs bisglycinate.

• Compound vs magnesium: the 1,500mg on the front is the weight of the buffered bisglycinate in two capsules. The nutrition panel gives 300mg of elemental magnesium, which is 80% of the 375mg reference value on UK labels.
• Why buffered matters: pure magnesium bisglycinate is only about 14% magnesium, so 1,500mg of it alone would give about 210mg (our sums). The added magnesium oxide makes up the rest. The label doesn’t say how much comes from each form.
• Against UK needs: the NHS says adults need 300mg (men) or 270mg (women) a day, and most people can get this from food. Two capsules equal the men’s figure and stay within the 400mg a day the NHS says is unlikely to cause harm from supplements.
• Serving and pack: one to two capsules a day; the nutrition panel is for two. A tub holds 120 capsules, which is 60 days at two a day.

The page says it’s not for under 18s. For more on the form, read our guide to magnesium glycinate; to compare several glycinate capsules on elemental mg, see best magnesium glycinate supplement UK. Use how much magnesium per day as your yardstick.

Simply Supplements magnesium citrate and the Triple Complex

Magnesium Citrate Tablets 700mg give 200mg of magnesium from one tablet a day, 53% of the reference value, and a tub holds 120 tablets. As with the bisglycinate, the 700mg is the compound, buffered with magnesium oxide; citrate on its own is a lower share of magnesium by weight. Citrate is one of the better absorbed forms in studies and can loosen stools at higher doses: see magnesium citrate.

Magnesium Triple Complex combines three buffered forms. Per two capsules the nutrition panel lists:

The label says one to two capsules a day, so one capsule gives about 192mg (our sums). Two capsules sit just under the NHS 400mg a day guide for supplements, so count any multivitamin on top. Read more on magnesium malate and on whether blends help in magnesium complex explained. For the glycinate vs citrate question itself, see magnesium glycinate vs citrate.

Simply Supplements magnesium tablets and combinations

Magnesium Tablets 200mg list magnesium oxide as the only magnesium source, giving 200mg from two tablets a day, in a tub of 360. Oxide packs a lot of magnesium into a small tablet but is one of the less well absorbed forms in studies; see magnesium oxide.

• Super Magnesium 250mg with Vitamin B Complex: 250mg of magnesium (from oxide) in one tablet, plus vitamin C and eight B vitamins at 50% to 100% of their reference values. The page says it shouldn’t be taken in pregnancy or while breastfeeding. More in our B vitamins guide.
• Calcium 400mg and Magnesium 200mg Tablets: one tablet with 400mg calcium and 200mg magnesium (carbonate and oxide). See magnesium and calcium together.
• Chewable Calcium and Magnesium Tablets: the same 400mg and 200mg in a berry chewable sweetened with sorbitol, dextrose and sucralose.
• Creatine and Magnesium Complex Powder: 5g creatine monohydrate per 7g serving with buffered magnesium citrate, which the label lists as 250mg at 67% NRV. See creatine.

The magnesium page also lists multivitamins and blends that contain some magnesium. If you take one of those alongside a magnesium product, add the two together.

Is Simply Supplements magnesium good for sleep?

Under UK rules, magnesium has no authorised health claim for sleep, whichever brand or form you choose. The authorised claims include that magnesium contributes to a reduction of tiredness and fatigue, to normal psychological function, to normal functioning of the nervous system and to normal muscle function.

On the research, a 2025 trial of 250mg of magnesium a day as bisglycinate found only a small change in sleep scores after four weeks. Our magnesium for sleep guide covers the studies, and the best time to take magnesium covers timing.

Where Evopure fits

Evopure isn’t connected with Simply Supplements. If you’re comparing options, ours takes a different approach, not a like-for-like swap:

• Magnesium Glycinate Sleep Complex: a berry-flavoured drink powder rather than capsules, from magnesium bisglycinate and citrate. Magnesium contributes to a reduction of tiredness and fatigue and to normal psychological function. The full serving is below.
• Reishi Mushroom Adaptogenic Complex: a reishi hot chocolate with 0.5g reishi, 0.5g maca and 0.3g cinnamon per 8g serving. It contains a little natural caffeine.
• Sleep CBD Oil: broad spectrum CBD with 0% THC and passionflower extract, for an evening routine. 10mg of CBD is about 0.2ml of the 500mg oil.

290mg of magnesium is within the NHS guide of 400mg a day from supplements. The herbs are listed as ingredients only. Like Simply Supplements’ bisglycinate, our 1,000mg of bisglycinate doesn’t give 290mg on its own: the citrate adds the rest.

The FSA’s 10mg a day figure is precautionary advice rather than a legal limit, set while longer-term safety research continues. At Evopure we think it is a very cautious figure, and many adults use more. If you go above it, increase slowly, and check with your GP or pharmacist first if you take any medication.

All three are vegan, made in the UK and for adults (18+) only. To compare other options, see our UK magnesium supplement guide.

Taking two products and who should check first

Simply Supplements’ labels say not to exceed the stated daily dose, that the products aren’t for under 18s, and to consult a GP first if you’re pregnant, breastfeeding, taking prescription medication or under medical supervision. The NHS says more than 400mg of magnesium for a short time can cause diarrhoea. The Triple Complex (384mg) plus the citrate tablet (200mg) would give 584mg, so add up every product you take, including multivitamins. More in magnesium side effects.

iAsk your GP or pharmacist before taking any magnesium if you have kidney disease, or take antibiotics, alendronic acid, levothyroxine or other regular medicines. We don’t recommend our products during pregnancy or breastfeeding. Our products are for adults (18+) only.

Buying Simply Supplements and where to read reviews

• Where: simplysupplements.co.uk sells one-off orders and subscriptions. Simply Supplements magnesium citrate is also listed on Superdrug’s and Tesco’s online marketplaces.
• Reviews: the product pages show customer reviews. We don’t quote reviews or give scores.
• The company: the site’s terms and conditions give a registered address in Yaxley, Peterborough, and the Triple Complex page says it is manufactured in the UK to GMP standards.
• ASA: we didn’t find an ASA ruling naming Simply Supplements when we searched in November 2026.

Other brands worked through the same way: VitaBright, Myvitamins, Cytoplan, Nutrition Geeks and Nutravita. For another UK-made triple magnesium capsule, see Bettervits magnesium, and for what’s on one shop’s shelf, Superdrug magnesium.