A heuristic for microbiome diversity from the American Gut Project. Variety, not quantity, of plants. Different colors, different families. The single most-cited number in our nutrition writing.
● Issue Jun 2026
Glossary
SYSTEMM · 1 min read
06·29·2026
Thirty plants a week
A heuristic for microbiome diversity from the American Gut Project. Variety, not quantity, of plants. Different colors, different families. The single most-cited number in our nutrition writing.