Regal Keto They are acidophilus, bifidobactetum, papian, green tes extract, grape seed extract, mangosteen super food extract, ginger root, mangosteen extract, ginger root, and more. Nutrition weight loss takes into consideration more than just supplementing your diet with multi-vitamins. You may have been on unsuccessful diets before which have some of the same elements of The Dukan Diet Plan but it is the combination of the phases which really make a difference. If you can't find anything else to focus on, that should tell you something...!