The Hunter Williams Podcast

VIP | Is It The Most Versatile Peptide Ever?

Jan 13, 2026
Delve into the fascinating world of VIP, a peptide often underestimated but packing a punch in health benefits. Discover how it influences smooth muscle relaxation, improving vascular and bronchial dilation. Learn about its powerful role as an immune modulator and its surprising effects on anxiety and mood. The discussion highlights practical dosing, administration methods, and potential side effects, making VIP a versatile game-changer in therapeutic applications. This episode is a treasure trove for anyone interested in cutting-edge health science.
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INSIGHT

VIP Is A Widespread Master Regulator

  • VIP is a 28–amino-acid regulatory peptide produced widely, not just in the gut.
  • It binds VPAC1/VPAC2 receptors and raises cAMP to relax smooth muscle, stimulate glands, and modulate immune cells.
INSIGHT

Vasodilation And Smooth Muscle Relaxation

  • VIP causes vasodilation and smooth muscle relaxation by lowering intracellular calcium via cAMP signaling.
  • These effects improve endothelial health, airway bronchodilation, GI motility, and reduce vascular resistance.
INSIGHT

VIP Functions As An Immune Switch

  • VIP acts as a powerful immunomodulator that reduces pro-inflammatory cytokines and increases anti-inflammatory signals.
  • It promotes regulatory T cells and shifts immune responses toward tolerance, useful in autoimmune contexts.
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