[4][14] Furhman's Nutritarian diet excludes dairy and meat for six weeks, but after this period a small amount of chicken and fish can be eaten.

[15] Fuhrman also allows a limited amount of low-fat dairy products, olive oil and refined carbohydrates on the diet after six weeks.

[4] Peter Lipson, a physician and writer on alternative medicine, has been heavily critical of Fuhrman's health equation, writing that since its terms cannot be quantified, it is "nothing more than a parlor trick".

[16] Fuhrman created what he calls the "Aggregate Nutrient Density Index" or ANDI, a ranking of foods based on his claims of micronutrient concentration and kale is at the top of this list.

[4] Fuhrman has heavily marketed his products and his infomercials have "become a staple during the self-improvement bloc of PBS pledge drives.

"[4] In the October 2012 edition of Men's Journal, Mark Adams stated that Fuhrman "preaches something closer to fruitarianism or Christian Science than to conventional medical wisdom".

According to Williams "This can be helpful for people who feel stuck in their weight loss journey and want to totally reset or detox their diet following a holiday or vacation.