Nutrition data

In my presentations and research, I often refer to products in the USDA food database (

Over the years, the USDA have added to and updated the original database that I reference, SR25, now referred to as ‘Legacy Foods’.

The nutritional value of the foods  that I have listed in this section reference the data from the original SR25 database and, in some cases, some of the data have been updated, so the current values are slightly different from the original data.  I have included in each food listing, the current USDA reference, so that you can always refer back to that listing for the most current data.




Please note that the US Department of Agriculture (USDA) all-foods database is not precise and some numbers don’t add up exactly.

It is a good guide rather than a precision tool.