I believe health will come from a raw food diet for sure, if you make the right transition. My transition was quite abrupt, but the body quickly got used to it and after a couple of weeks of raw food diet did not want to take processed food (the heaviness immediately arose, the stewed vegetables were not digested). So far I have never got sick and have not noticed any negative sensations, on the contrary, there was a great desire to constantly do something (despite the St. Petersburg weather). The quality of the products is of great importance, it is better not to buy at all in stores (well, or learn to choose the right fruits). I always buy everything on the market.
This is certainly a good way to reconsider your attitude to food, because almost everything is now fixated on this. Indeed, no matter what anyone says, all diseases appear from the wrong food.
There is one big nuance here, you cannot become healthier if you get carried away with something too much. It is not for nothing that doctors always advocate good nutrition, with a verified content of proteins, fats and carbohydrates (if you are interested in this, google "Pyramid of healthy eating"). In the raw food diet, as in any other diet, there are pros and cons (there are quite a few of them, it is worth noting). First, a person just needs to get proteins, yes, they can be obtained from legumes and tofu, but if we talk specifically about raw foodists, they also eat legumes in their raw form, which leads to the fact that they absorb toxins , which are destroyed only during heat treatment, as a result, vitamin deficiency and metabolic disorders develop. Secondly, if you buy vegetables and fruits in a store (should I still continue?), then everything can end sadly here, many fruits and vegetables lying on the shelves, especially if we talk about the winter-spring period, are grown with the help of various chemicals and others like them, therefore, if you eat only this, then nothing good will come of it.
Thirdly, raw foodists and vegetarians have a problem with lowering the level of vitamin B12 and D to critical levels, up to severe clinical manifestations of vitamin deficiency. Plus, it should be borne in mind that fat-soluble vitamins will not be absorbed if you do not properly consume products containing them, for example, you can eat a ton of carrots, but if you do not add at least a teaspoon of vegetable oil, it is unlikely that there will be any benefits other than cleansing the stomach. You should not also forget about minerals, macro and microelements, it is almost impossible to get all the "building" materials for the renewal of the cellular structure of our body only from vegetables and fruits.
There are also raw foodists who eat raw meat and fish, but we need to talk about them separately, although in any case, in our everyday life, I would not recommend such a hobby, you can pick up a lot beautiful parasites and other diseases.
In general, if you decide to become a raw foodist, then you will need to read a huge amount of information on how to supply your body with all the necessary substances, plus the very process of switching to everything "raw" will take quite a long time, because it will not be easy for the body to get used to it, and if you make a sharp transition, the consequences will be dire, a deficiency of vitamin D and B12 with the corresponding symptoms (it is very extensive), disorders of the digestive tract due to the huge amount of coarse fiber in the diet, and so on further.