Many producers now have trial versions on their web sites, or can send you a sample copy of their database. You may also find nutrition software programs by doing a general Internet search. The number of nutrients analyzed. Most people only need the basic macronutrients, vitamins, and minerals, but researches or those with a special interest might need individual amino acids, fatty acids, etc. These are especially useful features.
Some programs have exercise modules, menu planning, special report formats, etc.