Your body needs magnesium for over 300 different chemical reactions. Muscle stuff, nerve signals, energy production - the works. Most people grab supplements or eat spinach and almonds, but some drinks are surprisingly good sources too. If you're hunting for a magnesium-packed drink, your best bets are mineral waters (the ones labeled high in magnesium), fortified plant milks, and certain green juices. Let me walk you through the top options, with actual data and some expert commentary. High-magnesium mineral water, hands down. Brands like Apolinaris, Gerolsteiner, and some San Pellegrino varieties pack between 50 and 130 mg per liter. There are studies showing that drinking a liter of this stuff daily can actually raise your serum magnesium levels. But here's the catch - the amount varies wildly by brand, so you gotta check the label. Don't just grab any fizzy water off the shelf. Fortified plant milks are solid contenders. An 8-ounce serving of oat or soy milk gives you about 25-40 mg. But the real winner? Hemp milk. Hemp seeds are naturally loaded with magnesium, and unsweetened hemp milk can hit 110 mg per cup. Cow's milk is fine too - around 24-30 mg per cup - but it doesn't come close to the best plant-based or mineral water options. Honestly, hemp milk is where it's at if you want something creamy. They can, but only if you use the right ingredients. A green juice made from spinach, Swiss chard, and kale? That'll give you a decent amount. One cup of raw spinach has about 24 mg. But a smoothie with spinach, avocado (58 mg per avocado), and pumpkin seeds (150 mg per ounce) can easily top 100 mg per serving. The trick is to skip the fruit-heavy stuff - that just waters down the mineral content. You're better off going straight for the greens. Not the greatest sources, but they do contribute. Black coffee has about 7 mg per 8-ounce cup, and black tea gives you around 5 mg. The diuretic effect of caffeine? Minimal - doesn't really cancel out the magnesium. If you want a stronger option, try matcha green tea. It's got slightly more (10-15 mg per serving) because you're drinking the whole leaf powder. Still not a powerhouse, but every little bit counts. "If you want to boost your magnesium through drinks, the most efficient way is to drink a high-magnesium mineral water every day. The magnesium in it is bioavailable, and there's no sugar or calories. For something creamy, hemp milk is a nutritional powerhouse. Just check the label - magnesium content varies a ton between brands." Coconut water has about 25 mg per cup - moderate at best. Not as strong as mineral water or hemp milk, but it's decent for rehydration. You could do worse. Almost impossible from food and drink alone. The safe upper limit from supplements is 350 mg per day. Drinking up to a liter of high-magnesium mineral water is fine for most people. Your body's pretty good at regulating this stuff. Nope. Magnesium is a mineral, heat doesn't destroy it. If you boil hard water, some minerals might form scale, but the magnesium stays mostly intact. So boil away. Yep, carbonation doesn't change the mineral content. A lot of high-magnesium waters are naturally fizzy anyway. It's the mineral profile that matters, not the bubbles. So drink what you like.What drink is high in magnesium
What is the single best drink for magnesium?
How much magnesium do plant-based milks provide?
Can green juices and smoothies be high in magnesium?
What about coffee and tea?
Data table: Magnesium content in popular drinks
Drink
Serving Size
Magnesium (mg)
High-magnesium mineral water (e.g., Gerolsteiner)
1 liter
100 - 130
Hemp milk (unsweetened)
1 cup (240 ml)
~110
Fortified oat milk
1 cup
25 - 40
Spinach + avocado smoothie
12 oz
~80 - 100
Cow's milk (whole)
1 cup
24 - 30
Black coffee
8 oz
~7
Black tea
8 oz
~5
Expert insight: How to choose the best drink for magnesium
Checklist: How to maximize magnesium from drinks
Frequently Asked Questions (FAQ)
Is coconut water high in magnesium?
Can I get too much magnesium from drinks?
Does boiling water remove magnesium?
Is sparkling water as good as still water for magnesium?
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