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One Nutrition Ocean Mag, 100g
Lacking magnesium can lead to a whole range of problems from asthma to anxiety and migraines to muscle cramps. It’s also sometimes why you simply feel sluggish.

Many of us don’t get enough magnesium in our diets and having too much caffeine, salt or alcohol, as well as chronic stress and even too much exercise can reduce our levels even further.

One Nutrition Ocean Mag is a natural source of magnesium hydroxide from fresh Atlantic sea water.


Magnesium is important for many processes in the body, including regulating muscle and nerve function, blood sugar levels, and blood pressure and making protein. It's a nutrient that the body needs to stay healthy and not everyone get's enough from their diet. One Nutrition Ocean Mag comes in powder form so you can conveniently add it to water or a sports drink. And because we use magnesium hydroxide, rather than magnesium citrate, it’s nicely mild to taste.
5 tons of Irish seawater are needed to create just 1kg of magnesium for One Nutrition Ocean Mag. Our powder is so nutritionally dense that a little goes a long way in helping to keep magnesium deficiency at bay.

One Nutrition Ocean Mag, 100g

SKU: ON-OMAG100-008
£22.95Price
  • Magnesium hydroxide (sea water extraction)

    Allergy advice: for allergens, including cereals containing gluten, see ingredients in bold.