All Natural Herbs for Horses for Horses with Fluid Retention Horses retain body fluid stability by drinking upwards of 10 – 12 gallons of water a day and by eating moist plants when out to pasture. Additionally, horses are also able to retain water levels through breakdown and digestion of proteins, carbohydrates, and excess fats. Kidneys also play a large role in maintaining body water balance. Silver Lining Herbs has a number of herbal supplements for horses that are specially formulated to improve the overall diet of a horse, which can both improve or reduce water, whatever the case needs be. Silver Lining Herbs are veterinarian recommended and are even used by some of todays top professional riders- improve your equines health and happiness; try Silver Lining Herbs today.