Magnesium for cramp in the calf and muscle tension

Most common reason is the lack of magnesium

Cramp of the calf muscles is annoying and painful, especially when it occurs at night and disturbs our nightly rest.

Calf cramps and muscle tension are typical symptoms of acute magnesium deficiency. The frequency of calf cramp increases with age, which is why older patients often complain about such symptoms. But calf cramp and muscle tension also affect athletes, especially endurance athletes. High muscular activity and sweating lead to magnesium consumption and losses that can significantly impair athletic performance.

Calf cramp and muscle tension are typical symptoms of magnesium deficiency.

Regular doses of magnesium against calf cramp

A deficiency can be reliably balanced by using a regular and highly concentrated magnesium supplement. A sufficiently high dosage needs to be taken over a long period of time.


A dose of magnesium to prevent calf cramp is recommended in the evening before going to bed.

With normal renal function, magnesium can be taken as a long-term oral therapy. Excess magnesium  is excreted via the kidneys. The World Health Organisation (WHO) declares a daily magnesium dose of 300 milligrams in order effectively to treat a magnesium deficiency (for example with Magnesium-Diasporal® 300 mg, granules for oral solution). This dose canbe increased depending on the deficiency level.

What exactly happens in case of calf cramp and muscle tensions?

Sensible therapy for calf cramp

Calf cramp and tension are more often than not the result of an acute magnesium deficiency. The challenge of balancing this deficiency is in the establishment of a practical calf cramp therapy. An active substance and the correct dosage are the keys to rapid relief.

Literature on other active substances that alleviate calf cramp is available, but these active substances only treat the symptoms and not the causes of your cramp. They are also often associated with unfortunate side effects (e.g. allergic reactions, shortness of breath, blood count changes, liver dysfunction). For this reason, they should only be taken for a short period of time (approximately 14 days) and then the calf cramp starts again. The US-American Food and Drug Administration (FDA) for example, has not recommended quinine sulphate for the treatment of calf cramp for several years.

Only magnesium therapy, ideally with gentle-action magnesium citrate, gets to the root of the problem and is, therefore, suitable for a long-term therapy with a low risk of side effects. Taking magnesium will alleviate not only symptoms in the short-term, but also the actual cause of your calf cramp, which is attributable to magnesium deficiency.