protein, first class

'protein, first class' can also refer to...


More Like This

Show all results sharing this subject:

  • Medicine and Health


Show Summary Details

Quick Reference

An obsolete system of classifying proteins into first and second class, to indicate their relative nutritional value or protein quality. Generally, but not invariably, animal proteins were considered ‘first class’ and plant proteins ‘second class’, but this classification has no validity in the diet as a whole.

Subjects: Medicine and Health.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.