Magnesium

Over 50% of adults are low in magnesium. The right magnesium supplements can improve sleep quality, calm the nervous system, and reduce muscle cramps, but form matters. At HCRC, we stock only professional-grade magnesium supplements from Thorne, including magnesium bisglycinate for sleep, magnesium citrate for regularity, and buffered blends for sensitive stomachs. If you’re confused about magnesium glycinate vs citrate or need magnesium for sleep without laxative effects, our team helps match you to the best form. All formulas are third-party tested and free from fillers.

Frequently Asked Questions

Which magnesium supplement is best?

The best magnesium supplements depend on your goal. For magnesium for sleep and anxiety, magnesium bisglycinate is #1 because it’s bound to glycine and highly absorbable without a laxative effect. For constipation, magnesium citrate works faster. For energy + muscle cramps, try CitraMate. Thorne’s magnesium supplements use chelated forms, not cheap oxide, and every lot is third-party tested for purity.

What is the difference between magnesium glycinate and magnesium citrate?

The main difference in magnesium glycinate vs citrate is absorption + bowel effect. Magnesium glycinate, or magnesium bisglycinate, is chelated to glycine. It’s gentle, calming, and best for magnesium for sleep. Magnesium citrate binds to citric acid and pulls water into the bowel, so it’s used for constipation. If you’re sensitive, avoid citrate at night. Both are quality magnesium supplements when dosed correctly.

What are the signs of low magnesium?

Signs of low magnesium include muscle cramps, twitching, poor sleep, anxiety, headaches, fatigue, and constipation. Over 50% of adults don’t get enough from food due to soil depletion. That’s why daily magnesium supplements are often needed. If you have gut issues or take PPIs, absorption drops further. Testing RBC magnesium is more accurate than serum.

Is it safe to take magnesium every day?

Yes, daily magnesium supplements are safe for most people and often necessary. The RDA is 310–420mg, but many need 400–600mg from food + supplements. Chelated forms like magnesium bisglycinate are well-tolerated long-term and won’t cause diarrhea like oxide. If you have kidney disease, check with your provider first. When comparing magnesium glycinate vs citrate, glycinate is safer for daily use.

What is the best time to take magnesium?

For magnesium for sleep, take magnesium bisglycinate 60–90 minutes before bed with a small snack. For constipation, take magnesium citrate in the morning on an empty stomach. For muscle cramps or energy, split your dose of magnesium supplements — morning and night. Avoid taking high-dose magnesium with calcium, zinc, or iron as they compete for absorption.

Does magnesium help you sleep?

Yes. Magnesium regulates GABA, the calming neurotransmitter, and relaxes muscles. Magnesium bisglycinate is the best form for magnesium for sleep because glycine itself promotes sleep onset. Studies show 200–400mg nightly improves sleep quality, especially in adults 50+. Avoid magnesium citrate before bed unless you want a laxative effect. Thorne’s magnesium supplements are formulated for clinical results, not just label claims.

How much magnesium should I take daily?

Start with 200mg of elemental magnesium from magnesium supplements and assess tolerance. Most adults need 300–400mg total daily from food + supplements. For magnesium bisglycinate, that’s 2–3 capsules of Thorne’s formula. If you get loose stools, reduce the dose or switch from citrate to glycinate. Always check the “elemental magnesium” on the label — not total compound weight. Test levels if you’re unsure.