Magnesium helps muscles work and energy metabolism, and this magnesium dietary supplement from Nature's Bounty offers strong potency and trusted quality you can rely on.

Available Sizes & Variants:

200 tablets – High potency magnesium oxide formula for daily use.

Benefits & Features:

• Supports daily energy and muscle function.
• High potency magnesium oxide delivers robust daily support for bone health, energy metabolism, and nerve function, with easy daily dosing designed to fit most meal schedules and busy lives.
• Free from common allergens for peace of mind and gentle digestion.
• Includes non GMO formulation and suitable for gluten-free and lactose-free diets.
• Daily 500 mg fits common guidelines for adults and is best taken with meals to support absorption.

Nature’s Bounty Magnesium 500 mg tablets are proudly produced in the USA by Nature's Bounty, Inc., with strict quality controls that support every bottle. The formula is non-GMO and free from gluten, lactose, soy and fish, with no artificial flavours or sweeteners. The active ingredient is magnesium oxide, delivering straightforward daily mineral support. Note: this product uses magnesium oxide, not magnesium glycinate, and it is not a vitamin d supplement.

Magnesium (as Magnesium Oxide) Vegetable cellulose, dicalcium phosphate. Contains <2% of: Citric, titanium dioxide color, vegetable magnesium stearate.

• GTIN: 74312530869
• Manufacturer: Nature's Bounty
• Categories: Blood Pressure SupplementsMagnesium Supplements, Tablets & VitaminsMinerals SupplementsNature's BountyNew ArrivalsPeriod PainStress Relief & Calming Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Adults should take one tablet daily, ideally with a meal. As a dietary supplement\, take two capsules once daily or as directed by a healthcare practitioner.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Magnesium (Magnesium Oxide Form)

Magnesium is a essential mineral involved in a wide range of normal bodily functions, including bone health and energy metabolism. This form provides magnesium in the oxide form, contributing to the mineral profile of the supplement and its compatibility with allergen-free formulations.

This product features magnesium oxide as the active ingredient, a high-potency mineral suitable for supporting physiological processes alongside other ingredients that may be present in the formula.

What Does Magnesium (Magnesium Oxide Form) Do?

Magnesium participates in normal muscle function, nerve transmission and energy metabolism, contributing to overall cellular function. It assists with protein synthesis and supports bone mineral density in line with standard nutritional guidance and EFSA-aligned expectations.

Magnesium acts as a cofactor in many enzyme reactions and contributes to the maintenance of normal electrolyte balance, with its role recognised in contemporary dietary guidance.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Nature’s Bounty stood out to us when weighing brands for this supplement, especially against other manufacturers that don’t share their mix of heritage, clear transparency, and consumer-focused formulation. This label has a solid US manufacturing heritage and explains its products are carefully produced in the USA with strict quality control and production processes, reflecting a long-standing commitment to reliability.

The differentiator here is Nature’s Bounty’s focus on responsible formulation—free of common allergens and made with non-GMO ingredients—demonstrating a steady emphasis on purity and safety. This lines up with Welzo’s standards and our aim of partnering with brands that prioritise quality from source to bottle. Our assessment highlighted the brand’s ability to keep everyday quality through established processes, which we document in our quality and testing expectations—the standards we enforce.

This label is a great fit for Magnesium, with its strong production heritage and attention to formulation details, making it a robust product that complements our medical team’s recommendations our medical team. In the end, Nature’s Bounty earned selection for its solid track record, alignment with our vetting standards, and suitability for this supplement category.