A document such as this Life Extension Manual cannot approach being a comprehensive guide to the subject. It is intended as a guide to other information sources and as a source of information not readily available elsewhere. It gives little coverage to basics, such as antioxidant vitamins, that have been written about extensively elsewhere. Some important information on vitamin and mineral supplements, however, is contained in Appendix A of this manual. This manual also does not cover calorie restriction, which is the most well-documented and accepted form of life extension.
Most people consider calorie restriction to be a much too difficult and demanding lifestyle.
Those interested in calorie restriction should read Roy Walford's books listed in the Resources section of this manual. Other current methods may have some effect on slowing the basic aging rate, but they are mainly targeted at greatly slowing the manifestations of aging. It is important that anyone who plans to spend the remainder of an extended lifespan on a life extension program make sure that the time and money that such an endeavor requires is spent wisely. Self-education and reading about these subjects with a skeptical mind is the only way to do this. No one should entrust their health to any one source of information, not even this manual .