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Your dosing guide
Stir or shake until fully dissolved. Cold water works best. The Mango-Passionfruit comes through cleanest at fridge temperature.
New to high-sodium electrolytes? Start with half a scoop in 750ml for the first week. Most people work up to a full serve within a few days once the taste is dialled.
That's the maximum: one serve is 1000 mg sodium. If you're sweating heavily or deep in a fasting window, time it around your longest or hottest session.
Rawstone is a formulated supplementary sports food, not a medicine. Not suitable for children under 15 years of age or pregnant women: should only be used under medical or dietetic supervision. If you have a health condition, check with your doctor first.
Timing
Sodium isn't just a gym thing. Here's when a serve earns its keep.
You lose sodium overnight, especially if you sleep warm. A serve first thing restores what was lost and starts the day hydrated.
Sodium helps your body hold onto water in the cells. Drinking a serve before you train means you're starting hydrated rather than playing catch-up mid-session.
Zero sugar and only 0.4 g of carbohydrate, so it fits inside an intermittent fasting window. A serve mid-fast puts back the sodium and potassium a long fast runs down.
The mineral you lose most in sweat is sodium. Rehydrating with plain water after heavy sweating can dilute your electrolytes further. A Rawstone serve puts back what the sweat took out.
Your situation
Cutting carbs makes your kidneys flush more sodium. The headaches, fatigue and cramps people call the low-carb flu often come from that mineral loss. One serve puts a meaningful amount back.
Many people hit a dip around hour 14 to 16 of a fast: low energy, light head, flat mood. That is often low sodium and potassium. A serve puts them back without breaking the fast.
Most sports drinks deliver 200 to 400mg of sodium per serve. An hour of hard, sweaty training can cost you more than a gram, so a single serve of those barely dents it. Rawstone's 1000mg covers a real session.
Even if you spend the day at a desk, running on plain water and coffee can leave you low on sodium. One serve covers the gap with no sugar and nothing artificial.
What's in it
The form a mineral comes in changes how it dissolves and how it tastes.
The cheap form, potassium chloride, has a metallic bitterness, which is why brands either mask it with sugar or live with the off-taste. Potassium citrate dissolves cleanly and tastes clean. It's part of why Rawstone tastes the way it does.
Cheaper products use magnesium oxide, which barely dissolves in water. Magnesium citrate dissolves fully. At 75mg per serve, Rawstone is a source of magnesium alongside the sodium and potassium.
If you haven't heard of Reb M: most sugar-free drinks are sweetened with stevia, and the common cheap grade (called Reb A) is what leaves that bitter aftertaste. Reb M comes from the same plant but tastes clean. It costs more, which is why most brands don't use it. No sugar, no artificial sweeteners.
A lot of electrolyte powders are sweetened with several grams of sugar. Ours has none, and the full sodium, potassium and magnesium dose is printed on the label.
Our first batch will be tested by an accredited lab for heavy metals and microbes. The certificate the lab issues gets published here in full. Find yours by the batch number on your tub.
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