What types of nuts are useful for and can be digested by you depends largely on your body type. Vata types can digest most nuts, especially the heavy ones such as cashew and brazil nuts. The same affect the Pitta types who can only digest almonds, walnuts and Pecan nuts, as well as pumpkin and sunflower seeds Kapha types have trouble with almost all of them, due to their high fat content (for details on the body type subject, how to detemrine your body type and checking out the respective food lists, see my book The Key to Health and Rejuveantion, ener-chi.com. It also explains why there is a time when nut s aren't doing good to anyone, that is, the evening. Nuts tends to stay in the stomach 5-8 hours, which during the night would end up leave them undigested and putrefied. If you are a Vata or Pitta type, "10-12 alomonds per day keeps the doctor away." Nuts are very concentrated, so eating too much of them can affect the stomach and intestines. But as I said, the Vata type is best equipped to eating more, heavier and more oily nuts than the other types.