Plant Based. 99 mg Potassium. Parsley, Horsetail & Uva Ursi. X - Plant-Based Series. A common reason the body holds onto extra water may include weight gain, too much sodium in the diet, warmer weather and allergies. Natural Max DIET represents a brand of high-quality weight management products that are designed and formulated with some of the most studied ingredients available. Each product is thoughtfully created to provide positive options for weight management when used with the Diet Plan*. Herbal Blend. Water-X uses a combination of plant based botanicals that are known for their gentle properties. A plant based formula, Water-X dietary supplement is intended to be used with the Diet Plan*. *Diet plan printed inside carton and available on product’s website.