What exactly is a liquid diet?

Liquid diet. Liquid diet refers to requesting that all food be in a liquid form rather than a solid form. Clear fluids are foods like fruit juice, water, broth. Other liquids are e.g. Milk, rice milk, almond milk, vegetable juice.
Liquid diet. There are a variety of liquid based diets. If you have been told by a physician to go on a liquid diet, you may want to clarify what is on the "diet." in my practice, I put patients on "clear liquids" prior to surgery to make sure their stomachs are empty at the time of their operation. Other times, I place people on "protein based liquid diets" (optifast...) to assist in weight loss efforts.