Story perspectives

Gut Peptide CNMa Triggers Protein Cravings, Cuts Sugar Desire

6/6/2026

Summary

Story summary

Researchers found the gut peptide CNMa activates neural and hormonal pathways that drive protein-seeking behavior when essential amino acids are scarce.
Director Seong-Bae Suh’s Institute for Basic Science team reported the gut-brain signaling system in Science on May 21 2026, showing CNMa suppresses sugar-sensing DH44 neurons and reduces carb cravings.
Mice lacking FGF21 still pursued essential amino acids, indicating nutrient-sensing mechanisms and suggesting gut-brain signals as targets for obesity and metabolic-disorder treatments.

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Story summary

Researchers found the gut peptide CNMa activates neural and hormonal pathways that drive protein-seeking behavior when essential amino acids are scarce.
Director Seong-Bae Suh’s Institute for Basic Science team reported the gut-brain signaling system in Science on May 21 2026, showing CNMa suppresses sugar-sensing DH44 neurons and reduces carb cravings.
Mice lacking FGF21 still pursued essential amino acids, indicating nutrient-sensing mechanisms and suggesting gut-brain signals as targets for obesity and metabolic-disorder treatments.