Naughty Boy MGUltra

Name: Naughty Boy MGUltra
Brand: Naughty Boy
SKU: 703818981966
Price: 15.38 GBP
Availability: InStock

Brands: Naughty Boy

£15.38

Naughty Boy's take on a spread of everyday minerals, in a caps format that is easy to keep to day after day.

How to use

Take as directed on the pack, ideally with food and at the same time each day.

Good to know

Format: caps
Caffeine free

A food supplement, not a substitute for a varied diet and healthy lifestyle. Do not exceed the stated dose. Keep out of reach of children.

Quantity

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Categories : Caffeine-Free Supplements, Everyday Health Supplements, Naughty Boy, Vitamins & Supplements

SKU: 703818981966

At a glance

Moderate

evidence for magnesium

Our honest take

A magnesium-based capsule from Naughty Boy, aimed at people who train. Magnesium is worth taking if your diet is low in it (nuts, seeds, wholegrains, leafy greens), but extra magnesium is unlikely to help if you already get enough. We could not verify the forms or amounts per capsule, so check the label and keep magnesium from supplements at or below 400 mg a day, as the NHS advises.

You eat few magnesium-rich foods and want a top-up
You like the Naughty Boy range
You already take a multivitamin, ZMA or another magnesium product
You have kidney problems, without speaking to your GP
You take bisphosphonates, some antibiotics or thyroxine without checking timing with your pharmacist

The science

Magnesium· evidence: Moderate

Magnesium is an essential mineral found in green vegetables, nuts, seeds, wholegrains and beans. UK surveys show that some groups, particularly teenagers and some adults, eat less than the recommended amount. A supplement reliably raises intake, and people with a low intake or a diagnosed deficiency are the ones most likely to notice a difference. Most people eating a varied diet get enough from food.

Labels often show the weight of the whole compound (for example 1,000 mg of magnesium citrate), but only part of that is magnesium itself. What matters is the elemental magnesium per daily dose, compared with the NRV of 375 mg. Organic forms such as citrate, glycinate (bisglycinate), malate and taurate are generally absorbed a little better than oxide in small studies, but differences between them are modest and no form has been shown to be better for any particular use.

Magnesium is widely sold for sleep, stress and cramp. These are not authorised claims. Reviews have found the evidence for sleep is of low quality, and a Cochrane review found magnesium is unlikely to prevent ordinary muscle cramps in older adults.

Authorised health claim
Magnesium contributes to a reduction of tiredness and fatigue.
Magnesium contributes to electrolyte balance.
Magnesium contributes to normal energy-yielding metabolism.
Magnesium contributes to normal functioning of the nervous system.
Magnesium contributes to normal muscle function.
Magnesium contributes to normal protein synthesis.
Magnesium contributes to normal psychological function.
Magnesium contributes to the maintenance of normal bones.
Magnesium contributes to the maintenance of normal teeth.
Magnesium has a role in the process of cell division.

These claims apply only where the daily dose provides at least 15% of the NRV (56 mg of magnesium).

Typical dose: Most supplements give 100–400 mg of elemental magnesium a day (NRV 375 mg). The NHS says adults need about 270–300 mg a day in total, mostly from food.

Safety: High doses loosen stools or cause diarrhoea, especially citrate and oxide. EFSA sets an upper level of 250 mg a day of magnesium from supplements, and the FSA advises that up to 400 mg a day from supplements is unlikely to cause harm. Magnesium can reduce absorption of some antibiotics (tetracyclines, quinolones) and osteoporosis drugs (bisphosphonates), so take them a few hours apart. Speak to your GP first if you have kidney disease.

Research we looked at:
NHS. Vitamins and minerals: others – magnesium. nhs.uk.
EFSA NDA Panel (2015). Scientific opinion on dietary reference values for magnesium. EFSA Journal 13(7):4186.
Expert Group on Vitamins and Minerals (2003). Safe upper levels for vitamins and minerals. Food Standards Agency.
Garrison SR et al. (2020). Magnesium for skeletal muscle cramps. Cochrane Database Syst Rev 9:CD009402.

Ingredients & nutrition

Main ingredient: magnesium.

Pack: 120 capsules. The magnesium forms, amounts per capsule, any other actives, the daily dose and the full ingredient list could not be verified here: please check the pack.

Always check the pack you receive, as manufacturers sometimes update recipes.

How to use

Take as directed on the pack, ideally with food. If it loosens your stools, reduce the dose or take it with a meal. Do not exceed the stated daily dose.

Price per dose & how it compares

Product	Size	Price	Per daily dose
Conteh Sports ZMg		from £19.98	–
Olimp Nutrition Chela-Min		from £11.59	–

Cost per daily dose lets you compare packs of different sizes fairly.Worked out from our current prices.

Food supplements should not replace a varied, balanced diet and healthy lifestyle. General information, not medical advice. Speak to your GP or pharmacist first if you are pregnant or breastfeeding, have a medical condition or take medication.