<Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> Language </Th> <Td> English </Td> </Tr> <P> Forks Over Knives is a 2011 American advocacy film and documentary that advocates a low - fat, whole - food, plant - based diet as a way to avoid or reverse several chronic diseases . The film stresses that processed foods and all oils should be avoided . This is sometimes confused with a vegan diet, which in practice can be very different . The whole - food, plant - based diet promotes eating whole, unrefined or minimally refined plant - based foods . Those who adapt the lifestyle will base their diets around foods such as whole grains, legumes, tubers, vegetables, and fruits . It seeks to exclude or minimize any sources of animal - based protein and highly refined foods such as refined sugars and bleached flours . </P> <P> Through an examination of the careers of American physician Caldwell Esselstyn and professor of nutritional biochemistry T. Colin Campbell, Forks Over Knives claims that many diseases, including obesity, cardiovascular diseases, and cancer, can be prevented and treated by eating a whole food, plant - based diet, avoiding processed food and food from animals . </P>

What is the documentary forks over knives about