275mg of magnesium in every teaspoon, as citrate, from the Irish Sea — seawater magnesium, which carries 72 trace minerals with it. It dissolves fully in a glass of water, nothing left at the bottom, and has a slight citrus note. No capsule to swallow, no filler to bulk out the tin, no sweetener. One ingredient goes in, trace minerals and all, and nothing else.
- ✓275mg magnesium in one teaspoon (2.5g) — high in magnesium
- ✓Magnesium citrate from the Irish Sea
- ✓Unflavoured — no sweeteners, no flavourings
- ✓One ingredient — no capsule, no fillers
- ✓Vegan · Gluten-free · Dairy-free · Made in the UK
Two marathoners. Every night.
Why citrate
Magnesium never comes on its own. What it’s bound to decides the rest.
Magnesium is a metal. You can’t eat the metal, so every magnesium supplement is magnesium bound to something else — citrate, oxide, glycinate — and the something else decides what you’re holding: how much of the powder is actually magnesium, whether it dissolves, what it tastes like. It doesn’t change the magnesium.
Most magnesium starts as rock, mined and processed. Ours is drawn from seawater off the Irish coast and supplied as citrate.
We use citrate because it dissolves. The oxide in most tablets largely doesn’t, which is why it can be pressed small and swallowed whole — and why citrate comes as a powder you stir into a glass. One form, on its own. A blend of three forms isn’t three magnesiums; it’s one magnesium with more ingredients around it.
275mg is the magnesium itself — not the weight of the compound it’s bound to. Two very different numbers. Worth knowing which one a label is quoting.
Before you buy any magnesium
Five things to check on the label
Every tin says magnesium on the front. These are the questions that tell them apart.
1 · The number on the front
Is it the magnesium, or the weight of the compound it’s bound to? 1,000mg of magnesium bisglycinate holds roughly 140mg of magnesium.
✓Ours: 275mg of magnesium, elemental, per teaspoon — on the front of the tin.
2 · How many forms
The authorised claims are for magnesium, whichever form carries it. A blend of three earns nothing a single form doesn’t.
✓Ours: one form, citrate.
3 · What else is in the tin
Flavourings, sweeteners, colours, extracts. Read past the magnesium to the rest of the list.
✓Ours: magnesium citrate, and nothing else.
4 · Where it comes from
Most magnesium is mined from rock and processed. Some is drawn from seawater.
✓Ours: seawater, off the Irish coast.
5 · How you take it
A tablet swallowed whole, or a powder stirred into a glass of water.
✓Ours: a teaspoon in water, at night.
Take these five to any tin — including ours.
What magnesium does
- Magnesium contributes to a reduction of tiredness and fatigue.
- Magnesium contributes to the maintenance of normal bones.
High in magnesium: 275mg per 2.5g serving, 73% of the reference intake. Take one serving a day as part of a varied and balanced diet and a healthy lifestyle.
Per 2.5g serving · one teaspoon
275mgMagnesium
elemental, as citrate
elemental, as citrate
73%Reference intake
of 375mg a day
of 375mg a day
1Ingredient
magnesium citrate from seawater
magnesium citrate from seawater
40 / 200Servings
100g tin / 500g tin
100g tin / 500g tin
275mg is the magnesium itself, not the weight of the compound — and it’s set so one serving, plus what your food already gives you, lands around the reference intake rather than far past it. Unflavoured, vegan, gluten-free.
Runs with Run Easy
Collagen twice a day. Magnesium once, at night.
Run Easy is 5g of marine collagen in the morning and 5g again at night. Power Up is a teaspoon in water before bed. Take the second collagen and the magnesium together in the evening — one moment, two tins, and neither gets forgotten.
The routine
- MorningRun Easy, 5g, in a hot or cold drink.
- NightRun Easy, 5g, and Power Up, 2.5g (one teaspoon) in a glass of water.
- DailyPower Up once a day. Do not exceed the stated recommended daily dose.
Run Easy
Marine collagen. 5g, morning and night. Unflavoured, dissolves in hot or cold drinks. From £14.99.
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See the starter pair →Directions
Mix: one level teaspoon (2.5g) in a glass of water. Stir and it dissolves. Plain is fine; so is a cold drink you’d have anyway.
When: in the evening, before bed.
Daily: one serving a day. Do not exceed the stated recommended daily dose.
The ceiling: the UK guidance level for magnesium from supplements is 400mg a day, and above it loose stools are common. One serving is 275mg.
This is a food supplement. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Keep out of reach of young children. Store in a cool, dry place. If you have a kidney condition or take regular medication, check with your doctor or pharmacist before adding it.
Ingredients
Marine Magnesium Citrate and Irish Sea Minerals.
One raw material — magnesium citrate made from Irish seawater, which brings the sea’s trace minerals with it. No flavourings, no sweeteners, no colours, no anti-caking agents, no capsule.
Allergens: none of the ingredients is one of the fourteen allergens that must be declared by law. The pack carries no “may contain” statement.
Suitable for vegans. Made in the UK.
Nutrition
Per 2.5g serving (one teaspoon): elemental magnesium 275mg — 73% of the nutrient reference value of 375mg.
Why there’s nothing else in the table: a food supplement declares the nutrients it supplies, not energy, fat, carbohydrate, protein or salt. This one supplies magnesium.
Runners’ questions
What people ask before they buy
Will it help me sleep?
There’s no authorised health claim linking magnesium to sleep, so we don’t make one — and no supplement is allowed to. What we can say: magnesium contributes to normal functioning of the nervous system and to a reduction of tiredness and fatigue, and runners take ours at night because that’s when it fits into their routine best.
Why 275mg and not more?
275mg is the amount we settled on, and here’s why. The UK reference intake is 375mg a day, and most people get some of that from food. The guidance level for magnesium from supplements is 400mg a day; above it, loose stools are the usual result. One teaspoon takes you to around the reference intake without going past the ceiling. More isn’t better — it’s just more.
Why citrate and not glycinate?
Both are magnesium, and the authorised claims are identical whichever form carries it. There are around twenty forms of magnesium permitted in supplements — citrate, glycinate, oxide, malate and the rest — and every one earns the same claims. Glycinate usually comes as a capsule. We chose citrate because it dissolves in a glass of water, and a tin of it is one ingredient. A capsule is the thing that ends up at the back of the cupboard.
“I bought this because I can’t swallow the tablets for all of the other magnesium supplements I’ve tried. I’ve found this so easy to take, a spoon mixed in water before bed and I’m done.” — Sophie, Loox review, 5★
“Can’t swallow capsules for love nor money so these neat powder tins were right up my street.” — Emma, Loox review, 5★
What does it taste like?
Unflavoured means nothing added, not tasteless. There’s a slight citrus note from the citrate — some runners call it faintly bitter, most call it lemony. In water it’s mild; in squash, cordial or a soft drink you won’t notice it.
“Slight citrus taste to it, even if it does say unflavoured but nothing bad.” — James, Loox review, 5★
“It tastes slightly bitter but not unpleasant.” — Michelle, Loox review, 3★
“Dilutes really well, slightly lemony but I don’t mind that.” — Joel, Loox review, 5★
How do I measure a serving?
A level teaspoon is 2.5g. Level, not heaped — a heaped teaspoon is closer to two servings, which is the quickest way past the 400mg ceiling. If you want to be exact, weigh the first one and see what your spoon holds.
“I had to go through my spoon draw to get the right size spoon.” — Andrea, Loox review, 3★
“It dissolves quickly and easily in water.” — Tabitha, Loox review, 5★
Can I take it with Run Easy?
Yes. Run Easy is 5g of marine collagen morning and night; Power Up is a teaspoon before bed. The evening is where the two meet — the same five minutes, one routine.
“Collagen mixes well with my morning coffee.” — Paul, Loox review, 5★
More questions answered on What Runners Ask.
Rated by runners
“The slight citrus taste is very palatable and it dissolves quickly and easily in water.”
Tabitha C., verified buyer · one of the reviews below
Choose your tin →
100g tin, 40 nights · two 100g tins · 500g tin, 200 nights. Free UK delivery over £40.
If you only take one thing from us
Magnesium is one teaspoon at night. Run Easy is for the rest of the day.
Two teaspoons of marine collagen in your morning coffee, two more in the evening — every day, run or no run. One ingredient, nothing added, and the product our customers reorder most. It’s where most people start with us, and what the magnesium sits alongside.
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Run Easy Marine Collagen
Hydrolysed marine collagen. One ingredient. Dissolves in hot or cold drinks.
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