Serena Holtsinger, INHC

Holtsinger coaches from a circadian- and light-biology vantage point that most nutrition-first coaches don't hold; layering mitochondrial health, nutrient density, and environmental inputs (light exposure, sleep timing, stress) onto the standard food-and-movement toolkit. Her bio names the four goals she's optimizing toward: balanced hormones, optimal cognition, restorative sleep, and maximal vitality. The through-line in her published quotes is pragmatic translation; mindful eating vs. mindless eating, regular bone-loading upkeep, matcha's l-theanine profile. Behavior change framed in specifics, not slogans. The framing she uses publicly is "cutting-edge science with ancestral wisdom"; peer-reviewed biology paired with older lifestyle patterns (natural light cycles, whole-food nutrition, outdoor time) that modern routines tend to erode.

• Double-certified. INHC through the Institute for Integrative Nutrition plus a Circadian Health Specialist credential; two distinct certifications, not a single generic health-coach label.
• Circadian and light biology as a primary lens. A specialty most Lifeforce peers don't foreground; relevant for members whose sleep, hormones, or cognition issues trace back to circadian disruption, not just diet.
• Published voice inside Lifeforce. Quoted expert across multiple Lifeforce journal articles (mindful eating, osteoporosis prevention, spring wellness); a signal of internal seniority and subject-matter trust from the clinical team.

• Coaching role. Holtsinger supports nutrition, sleep, circadian habits, and daily implementation; she does not diagnose, prescribe, or order labs.
• Access. Coaching is part of the Lifeforce membership, not a separate public booking flow.
• Care focus. Members who want nutrition and rhythm support between clinician consults.