Magnesium orotate
Magnerot
Forms: Sold as a medicine (Magnerot) in some countries and as a supplement elsewhere. Other magnesium salts have their own cards.
Other esters and forms: Magnesium, Magnesium aspartate, Magnesium carbonate, Magnesium chloride, Magnesium citrate, Magnesium gluconate, Magnesium glycinate (bisglycinate), Magnesium hydroxide, Magnesium L-threonate, Magnesium lactate, Magnesium malate, Magnesium oxide, Magnesium sulfate (Epsom salt), Magnesium taurate
Magnesium bound to orotic acid, sold for the heart. It contains little magnesium by weight, and EFSA could not confirm its safety at high supplement intakes.
Legal status: Sold as an OTC medicine or a supplement in some countries; status varies by country; not prohibited in sport.
What it gives
What people use it for and what the sources report. Strength is a general category from the literature: mild, clear or strong.
Purpose
Taken for heart rhythm, heart failure, blood pressure and cramps, and to replace magnesium. Heart data come mainly from one small trial and a Russian meta-analysis of small trials, none in athletes; palpitations in training need a heart check. It corrects low magnesium; other benefits are not firmly established.
What people seek and what studies show
In one small trial of 79 patients with severe heart failure, adding orotate improved survival at one year (76% vs 52%); it has not been confirmed in larger trials. A Russian meta-analysis of 19 small trials reported fewer arrhythmias and less hypertension. There are no trials in athletes; with adequate magnesium, supplements have not improved performance.
Effects
Evidence: Limited human data — some human studies, small or short
Sought effects by goal (as reported)
Possible side effects
Possible does not mean certain: whether they appear depends on dose, duration, individual response and monitoring. Below — what to watch for and how to notice it early.
2 possible side effects
level · how often it is reportedWhat the levels mean
Level: general category from the literature, not your personal risk
How often
- common
- reported often
- possible
- reported in some people
- rare
- reported occasionally
How to lower the risks
For 1 of 2 possible side effects there are specific ways to lower the chance: everyday measures, supplements and options a doctor may consider. For the rest — general advice. No measure removes a risk completely.
No check-up or blood test lowers this risk; avoid with any personal or family history of cancer.
Low-level side effects
How each option helps (2)
- Working with a doctor — Assesses persistent vomiting or severe belly pain (possible pancreatitis or gallstones) and adjusts prescribed GLP-1 treatment when nausea persists.
- Pancreatin + dimeticone (Pankreoflat) — May ease heaviness and gas after meals; can cause nausea or diarrhea. Not for pork or cow's milk protein allergy (anaphylaxis reported) or early acute pancreatitis.
Check-ups and blood tests
Which tests and check-ups to do and when. This is a guide — agree the exact schedule with a sports physician.
Which doctors can help
Get medical help at once if
- A new lump (including in the neck), trouble swallowing or persistent hoarseness, unexplained weight loss, or blood in stool or urine — see a doctor promptly.
In an emergency, call your local emergency number.
For women
For leg cramps in pregnancy, a Cochrane review found the magnesium trials conflicting; in pregnancy, discuss it with a doctor first.
Myth & fact
“Orotate is the proven heart form of magnesium.”
The key evidence is one small single-centre trial in severe heart failure. It has not been confirmed, and EFSA has raised safety concerns about orotic acid.
Combinations
No specific combination notes for this substance yet. The stack check still adds up side effects that several substances share.
Sources
Possible side effects by body system, combinations, how to lower the risks and which tests to do — free.
Open the stack check