Everyone, it seems, is using powdered collagen these days. Jennifer Aniston, the face of one of the more popular brands, glows in the ads. Nutritionists and social media influencers wax about its merits. But where is the proof—the research—that says edible collagen works for anti-aging? In this episode, Linda tries to find out, journeying from the National Institute of Health all the way to the University of Washington, where she discovers an expert in the field of collagen as it relates to the human body: scientist/biochemist David M. Hudson. Also discussed: topical collagen.

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