Topic
Marcus
Marcus is a recurring research topic on Health Canon. This hub collects related explainers and protocols, newest first, each with evidence grades and practical decision frameworks.
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Environmental Health
RO Remineralization Debate: Minerals, Taste, and What Evidence Actually Requires
RO strips dissolved solids; remineralization improves taste and can restore some hardness—diet remains the main mineral source for most people.
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Fitness
Upper/Lower Split Programming for Men: Frequency, Volume, and Progression
Upper/lower splits hit muscles ~2×/week with manageable session length—strong default for intermediates chasing strength and hypertrophy.
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Nutrition
Ramsden Reanalyses of Seed-Oil Era Trials: Sydney Diet Heart and Minnesota Coronary
Recovered data show pure high-linoleic interventions did not deliver the mortality free lunch mid-century narratives promised.
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Nutrition
Seed Oils on Sex Axes: Men, Women, Pregnancy, and What Trials Show
Men convert less ALA to EPA/DHA; pure-LA harm signals were male-heavy; pregnancy needs DHA—not zero linoleic acid.
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Environmental Health
Microplastics Sex Axes: Semen, Placenta, and Shared Exposure Uncertainty
Microplastics appear in semen and placenta reports; dose metrics remain uncertain—sex-axis writing pairs findings with measurement humility.
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Men's Health
Fragrance, Phthalates, Male Testosterone and Sperm: Evidence Map
DEP/MEP from fragranced products join broader phthalate male reproductive literature—robust for some congeners, slight for others.
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Environmental Health
Fluoride Removal Technologies Compared: RO, Bone Char, Alumina, and Distillation
Activated carbon pitchers generally do not remove fluoride well; RO, distillation, and specialized media are the real options.
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Men's Health
Birth Control Hormones in Water and Male Fertility Claims: Dose Reality Check
Trace EE2 and related estrogens in waterways feminize fish at ecological doses; human drinking-water doses are orders of magnitude below contraceptive pills.
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