Muscles need energy. With major, explosive bursts of exertion, energy is produced from sugars. In this rapid anaerobic cycle (without oxygen), however, lactic acid is produced. With heavy exertion the muscle cells also often become damaged. This in combination with the forming of lactic acid can cause stiffness, muscle twitching, reduced performance and in extreme cases even tying up. Lacta-Fort contains high doses of natural endogenous substances to support muscle metabolism and optimise the energy process. Lacta-Fort is also often used when the horse is being transported for a long time. The horses arrive at their destination without any muscle stiffness, which is crucial for optimum performance.