Dr. Kellyann Petrucci
Naturopathic physician and bone broth author
Bone broth • collagen • and gut health
About the expert
Focus: Bone broth and collagen for gut and hormonal health
Kellyann Petrucci is a naturopathic physician and bestselling author known for the bone broth diet, focusing on collagen, gut-lining repair, and intermittent fasting. She sells bone broth and collagen products under her own brand, a commercial interest worth noting when weighing her recommendations.
Why this matters
Naturopathic physician known as the bone broth advocate, who frames gut, skin, and hormonal health around collagen, bone broth, and personalized, whole-food nutrition. Reasonable on stress, fermented foods, and gentle eating for a sensitive gut; weakest on evidence for her signature bone broth and collagen claims, which she sells commercially.