What is Malic Acid? Malic Acid is closely related to Citric Acid Vitamin C which is found naturally in a wide range of foods including green apples. Malic Acid can be quite tart & bitter & has been used for many years as flavouring in a variety of different sweets providing a sharp & tangy taste. Malic Acid is one of the main fruit acids & is produced naturally in a range of plants most notably in apples. Benefits of Malic Acid Malic Acid is naturally occurring in small quantities in a variety of foods for maximum benefits it is necessary to supplement the diet with sources of Malic Acid in order to enjoy its full effects. Malic Acid powder contains 100% Malic Acid. Who is Malic Acid suitable for? Malic Acid should be of particular interest to anyone engaged in training for endurance events such as long distance running or cycling. As a dietary supplement we recommend consuming 800mg daily preferably with a meal.