Magnesium Supplements UK: Top 5 Picks for 2026

Nutravita's Magnesium Glycinate 400mg is presented as a best-in-class choice for those prioritising gentleness and elemental magnesium per dose, using a chelated glycinate form that typically causes less gastrointestinal upset than citrate. It holds an edge over cheaper citrate tablets by offering a higher per-capsule elemental load and often better tolerance, while remaining more cost-effective than some premium 'food-grown' or transdermal options on a per-milligram basis. Compared with topical sprays like BetterYou, Nutravita gives a reliable, measurable oral dose that is simple to price-compare and include in daily regimens.

Holland & Barrett Magnesium Citrate 100mg is positioned as the budget-friendly, high-street option for straightforward magnesium supplementation, appealing to shoppers who value accessibility and lower unit price. Although its 100mg citrate dose is lower and can be more laxative than glycinate, it competes well on shelf presence and affordability versus Nutravita and Solgar, making it an economical choice for splitting doses or maintaining low daily intake. Compared with premium formats like Wild Nutrition's food-grown or BetterYou's transdermal spray, Holland & Barrett focuses on price and convenience rather than niche formulation claims.

BetterYou Magnesium Oil Body Spray is the market leader for transdermal magnesium, offering a non-oral route that suits users wanting to avoid gastrointestinal effects or who prefer topical application for targeted muscle relief. Its technical advantage is ease of topical dosing and rapid local application, though it is typically more expensive per delivered milligram and has less directly measurable systemic dosing than oral forms like Nutravita or Solgar. Compared with whole-food supplements such as Wild Nutrition, the spray prioritises practical topical delivery over multi-nutrient synergy, so it often sits at a premium price point for a different use case.

Solgar Magnesium Citrate Tablets represent an established, trusted-brand choice with consistent manufacturing standards and wide international availability, appealing to consumers seeking quality assurance and third-party legacy. While citrate can be more readily soluble than some forms, Solgar's positioning is typically mid-to-premium priced compared with mass-market citrate options like Holland & Barrett, offering perceived value through brand reputation rather than lowest cost per milligram. Compared to Nutravita's glycinate and Wild Nutrition's food-grown formulations, Solgar is a dependable conventional option for shoppers who prioritise brand history and quality control.

Wild Nutrition Food-Grown Magnesium is positioned as a premium, whole-food-derived supplement that appeals to consumers seeking broad nutrient synergy and a natural sourcing narrative rather than maximum elemental magnesium per tablet. Its technical advantage is the food-grown approach and inclusion in a holistic supplement philosophy, but it generally costs more per milligram and delivers lower elemental magnesium than chelated or citrate concentrates like Nutravita and Solgar. For users comparing value, Wild Nutrition offers the trade-off of a specialist, multi-nutrient product versus the straightforward dosing and lower costs of standard oral magnesium supplements.