If you have bloodwork done and it shows you are lacking a vitamin or nutrient, either before or while on the diet, supplementing is a good idea. Be careful of supplements that have fillers that can cause a reaction (as they did with me), there are versions of supplements without fillers but they can be more expensive. Pure Encapsulation is generally safe. Keep an eye out for magnesium stearate or rice powder and avoid it. You can also try to buy the pure powders, or better yet – hit up a naturopath (or even a Botox clinic/beauty salon) and get their Meyers cocktail IV vitamin infusion. This can boost you up while your body recovers and won’t cause an autoimmune reaction like pills with fillers can.