Supplement
High-Dose Calcium and Magnesium
Historical claim, not recommended: an old source urged megadose calcium and magnesium for Raynaud's, but these amounts exceed safe limits and can harm the kidneys and heart.
🛑 RemedyRank warns against this
High supplemental calcium can cause constipation and has been linked to kidney stones.
This page exists so the reasons are written down plainly, not because the practice is recommended. Nothing is sold here. If a doctor has prescribed something for a diagnosed condition, follow their guidance — that is a decision between you and them, and it is a different thing from trying this at home.
📊 How it ranks (our editor score) — 25/100Tap to see the breakdown
🌱 What it is
This is the practice of taking very large daily doses of calcium and magnesium supplements in hopes of easing the finger and toe spasms of Raynaud's phenomenon.
📜 Where it comes from
An older remedy book urged large daily doses of calcium, 2,000 mg, and magnesium, 1,000 mg, to ease the blood-vessel spasms of Raynaud's phenomenon. This reflected a broader mid-century habit of reaching for mineral megadoses to treat circulatory symptoms rather than food-based or medical approaches.
🙏 Begin with prayer
Prayer is the first remedy, not the last resort. Whether you are facing this yourself, caring for someone who is, or simply reading to understand — here is a simple prayer you are welcome to make your own, in your name or in theirs:
Lord, I bring You someone I love who is suffering. You know them by name, and You love them more than I can. If it be for Your glory and their good, restore them to health; and if Your answer is different from my asking, let Your grace comfort and Your presence sustain them. Show me how to help with my own two hands. In Jesus' name, Amen.
“Confess your faults one to another, and pray one for another, that ye may be healed. The effectual fervent prayer of a righteous man availeth much.”— James 5:16
🥄 How to use it
RemedyRank does not recommend this. Get calcium and magnesium mainly from food such as leafy greens, beans, nuts, and whole grains, and see a doctor about Raynaud's symptoms.
How much: None. Not recommended at any dose.
Why it works: The old claim supposed extra calcium and magnesium would relax blood vessels and prevent spasms, but high supplemental calcium can cause constipation and over time has been linked to kidney stones and possible heart concerns, while high magnesium commonly causes diarrhea and can be dangerous with kidney disease.
⚠️ Cautions
- High supplemental calcium can cause constipation and has been linked to kidney stones.
- Excess calcium has raised possible heart concerns in some studies.
- High magnesium commonly causes diarrhea.
- Magnesium at these doses can be dangerous for people with kidney disease or on certain heart and blood-pressure medicines.
- A doctor should guide any supplementation beyond sensible, food-based amounts.
📚 Learn more
🌿 Deeper natural detail
Curated links coming for this one.
🩺 The conventional view
💬 Ask Remy about High-Dose Calcium and Magnesium
📚 Resource confidence
Based on mentions in health references
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