BODY
Evidence-based body & physical wellness editorial
Iron-Deficiency Hair Loss, Starting Supplementation Within 6 Months Improves Prognosis
Patients who began iron supplementation within 6 months of hair loss onset showed significantly better recovery outcomes. The optimal ferritin target for hair health is 70ng/mL or above, and bisglycinate offers better absorption with fewer GI side effects.
60% of Women with Hair Loss Had Low Ferritin, Researchers Propose 60ng/mL Threshold
A dermatology study found that 60% of women experiencing hair loss had ferritin below 30-40ng/mL. Researchers propose raising the hair-health ferritin target to 60ng/mL with hemoglobin above 13g/dL.
Collagen Supplements Effective for Postmenopausal Women and UV-Damaged Skin
An umbrella review analyzing 113 randomized controlled trials with approximately 8,000 participants found that collagen supplements show significant effects in postmenopausal women and UV-damaged skin, differing from general wrinkle-reduction expectations.
Up to 40% of GLP-1 Weight Loss Comes From Muscle, Nutrition Strategy Is Key
During GLP-1 receptor agonist use, 15~40% of total weight lost can come from muscle. Based on joint recommendations from ACLM, ASN, OMA, and The Obesity Society, here is the nutrition and exercise strategy to preserve lean mass.
Preventing Muscle Loss, Why Protein Alone Is Not Enough
HMB at 3g/day significantly improved grip strength. Vitamin D helps only when correcting deficiency. Leucine, creatine, omega-3, and the limits of supplementation strategy for sarcopenia.
KeraGEN-IV Keratin Supplement Reduces Hair Loss by 43% in 60 Days
A KeraGEN-IV keratin supplement trial involving 65 women aged 45-60 showed 43.1% reduction in hair loss and over 10% increase in skin elasticity within 60 days.
Ingestible Beauty Supplements Grow 17.3% Year-Over-Year
The nutricosmetics market grew 17.3%, with personalized nutrition and microbiome-based beauty emerging as key drivers. Recent clinical data on collagen, resveratrol, and hyaluronic acid adds substance to the trend.
Intermittent Fasting and Female Hormones, Rodent Studies and Human Data Tell Different Stories
Human trials show no effect on estrogen, gonadotropins, or prolactin. Androgen markers decreased, especially in women with PCOS. Early time-restricted eating is the key variable.
Probiotics, Why You Need to Check the Strain Name
Lactobacillus rhamnosus GG and Lactobacillus acidophilus share a genus but produce different outcomes. The latest clinical evidence for strain-specific and disease-specific effects.
Metabolic Flexibility: The Fuel-Switching Ability You Gradually Lose With Age
Mark Mattson published his Cyclic Metabolic Switching theory in Nature Metabolism 2025. Four weeks of time-restricted feeding reversed insulin-related metabolic deficits. Combining ketogenic eating with TRF shows additional benefits.
Menopause Supplements Are Growing Into a Real Science
The women's health supplement market is projected to grow from $57.4 billion in 2024 to $77.4 billion by 2030. D3 plus K2, magnesium glycinate, NAD+ precursors, and urolithin A are the ingredients leading the menopause segment.
22% of U.S. Households Use GLP-1 Drugs. Probiotics Are Filling the Gaps.
With 22% of American households on GLP-1 medications, Expo West 2026 showcased a new category of complementary products. Kerry BC30 reduced GI side effects in a 253-person trial, Saanroo Trpti offers a natural appetite pathway via OEA, and delivery formats are evolving fast.