Peptides9 min read
Afamelanotide and skin checks: why pigment changes need context
Afamelanotide can darken existing moles. Learn why regular full-body skin checks, earlier review of changes and a useful treatment history matter.
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Research, explained. Explore peptides, supplements, hormone health, longevity and red light therapy with clear, practical breakdowns of what the studies actually tell us.
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Supplements8 min read
Vitamin D and fractures: what VITAL did—and did not—settle
VITAL found no routine fracture benefit from vitamin D3. Learn why that result differs from treating deficiency and how calcium, dose and setting matter.
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Supplements8 min read
Plant protein and muscle: compare diets, not just scoops
Plant-based diets can support muscle growth, but serving size, daily intake and trial design explain why protein comparisons differ.
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Supplements9 min read
Saccharomyces boulardii: what being a probiotic yeast changes
What S. boulardii trials show about antibiotic-associated diarrhea, why C. difficile is a separate question, and when live yeast poses safety concerns.
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Supplements9 min read
B12 and fatigue: when testing matters more than an energy claim
B12 deficiency can cause fatigue and neurologic problems, but extra B12 is not a diagnosis. Learn how symptoms, risks and test timing guide the next step.
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Supplements8 min read
Folate, folic acid and MTHFR: choosing a form for the right reason
Common MTHFR variants do not make folic acid unusable. Compare folate biomarkers with the clinical evidence that guides neural tube defect prevention.
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Supplements9 min read
St John’s wort: depression benefits and medication interactions
St John’s wort has evidence for some depression settings, but its effects on medicines can determine whether it is a sensible option.
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Supplements9 min read
Milk thistle and liver health: a protective reputation is not permission to ignore the cause
Silymarin trials ask narrower questions than a liver-support label. Understand what enzymes, biopsy findings and disease-specific treatment can—and cannot—show.
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TRT9 min read
Better libido does not necessarily mean better erections on TRT
TRT can improve desire without resolving erections. The trials show why each sexual symptom deserves its own assessment.
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TRT9 min read
TRT blood tests: why timing can change what your result means
A testosterone result needs its dose history. Product-specific sampling times, recent changes and gel contamination can all affect the interpretation.
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TRT9 min read
Why “crash your estrogen” is bad hormone reasoning
Estradiol supports bone and sexual health in men. Learn why symptoms, assay quality and treatment goals matter more than suppressing a laboratory number.
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TRT8 min read
Normal testosterone but still tired: what to review next
Persistent fatigue deserves a fresh look at symptoms, sleep, blood counts and the original treatment goal, even when testosterone reaches the normal range.
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