Malic Acid

What does it do? Malic acid is a naturally occurring compound that plays a role in the complex process of deriving ATP—the energy currency that runs the body—from food.

Although uncontrolled research had suggested that the combination of 1,200–2,400 mg per day of malic acid and 300–600 mg of magnesium for eight weeks reduced symptoms of fibromyalgia,1 double-blind evidence has shown that malic acid plus magnesium fails to help people with this condition.2

Where is it found? Malic acid is found in a wide variety of fruits and vegetables, but the richest source is apples, which is why malic acid is sometimes referred to as “apple acid.”

Malic acid has been used in connection with the following conditions (refer to the individual health concern for complete information):

Rating Health Concerns
1Star Fibromyalgia
3Stars Reliable and relatively consistent scientific data showing a substantial health benefit.
2Stars Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
1Star An herb is primarily supported by traditional use, or the herb or supplement has little scientific support and/or minimal health benefit.

Who is likely to be deficient? A deficiency in humans is unlikely, since the body can produce malic acid.

How much is usually taken? Healthy people do not need to take malic acid as a supplement. Research has been conducted with 1,200–2,400 mg of malic acid in combination with 300–600 mg of elemental magnesium.

Are there any side effects or interactions? Current research does not indicate any adverse effects from the use of malic acid in moderate amounts.

At the time of writing, there were no well-known drug interactions with malic acid.

References:

1. Abraham G, Flechas J. Management of fibromyalgia: rationale for the use of magnesium and malic acid. J Nutr Med 1992;3:49–59.

2. Russell J, Michalek J, Flechas J, et al. Treatment of fibromyalgia syndrome with SuperMalic: a randomized, double-blind, placebo-controlled, crossover pilot study. J Rheum 1995;22:953–7.