Wise Traditions 572: Work With Your Body's Biology For Weight Loss, Optimized Fertility, & Excellent Health With Sarah Kleiner
Mar 30, 2026
Sarah Kleiner, a board-certified applied quantum biology expert and nutrition coach who created the My Circadian app, explains how tuning into light and circadian biology can transform health. She covers leptin as a master signaling hormone, seasonal eating versus extreme diets, practical light hygiene, and simple daily habits like morning sunlight that supported her weight loss and pregnancy.
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Weight Loss And Pregnancy After Leaving Carnivore
- Sarah Kleiner lost 30 pounds and conceived at 42 after shifting off a strict carnivore diet to a more seasonal, balanced ancestral approach.
- She credits added nutrients, reduced stress signaling, and light biology for thyroid recovery and effortless weight loss.
Leptin As A Master Circadian Signal
- Leptin is a master circadian signaling hormone that coordinates fertility, bone, heart, gut, and thyroid health.
- Leptin signaling is tied to light exposure, proper nutrition, and intact circadian rhythms rather than easily druggable biochemistry.
Eat Bioavailable Protein With Morning Light
- Eat bioavailable protein early with morning sunlight to support leptin signaling and downstream hormones.
- Prioritize eggs, ruminant meats, poultry and single-ingredient whole foods to reduce gut inflammation that blocks leptin.