By condition
Explore by health concern
Fourteen core areas, each with a dedicated category page bringing together prevention guides, management strategies, and the supplement evidence that applies.
✚
Cancer
Risk reduction, lifestyle evidence, and supplement claims examined against the trial data.
♥
Heart & Cardiovascular
Cholesterol, lipids, omega-3 and CoQ10 — what protects the heart and what doesn't.
◐
Diabetes & Blood Sugar
Insulin sensitivity, glucose control, and the metabolic-health evidence base.
≈
Asthma & Respiratory
Triggers, management, and the supplement claims tested against respiratory outcomes.
❋
Eczema & Skin
Barrier care, flare management, and which nutrients the evidence actually supports.
⌒
Blood Pressure
Minerals, vascular function, and lifestyle levers for hypertension.
◍
Gut & Digestion
Microbiome, bloating, regularity, and absorption — grounded in the research.
☾
Sleep
Falling asleep, staying asleep, and circadian rhythm — behavior first, supplements second.
◇
Stress, Anxiety & Depression
Adaptogens, amino acids, and mood support — and the evidence behind each.
↘
Fat Loss & Metabolism
What actually moves the needle for weight and metabolic health (and what doesn't).
✦
Energy & Focus
Fatigue, cognition, and mitochondrial support — evidence vs hype.
⬢
Muscle Building
Protein, creatine, and hypertrophy — the strength and performance evidence.
❂
Neurology & Brain Health
Narcolepsy, cognition, neurodegenerative risk — the neurological evidence.
◈
Autoimmune & Inflammatory
Rheumatoid arthritis and immune-mediated inflammation evidence.
How each condition is covered
Two article types per condition
For every condition we publish two complementary articles, so you get both the full picture and a fast, honest answer on supplements.
1
Full prevention & management guide
The complete picture for a condition — risk factors, prevention strategies, day-to-day management, and the lifestyle and clinical evidence that underpins each recommendation.
- What raises and lowers risk
- Prevention and management strategies
- Evidence graded from Strong to Insufficient
2
Supplements that work vs. no evidence
A focused verdict on the supplements marketed for the condition — which ones have real supporting evidence, and which are sold on claims the studies don't back up.
- Supplements with genuine supporting evidence
- Popular options with little or no evidence
- Interaction and safety flags called out
Recently reviewed
Latest research
Newly published and freshly re-reviewed guides across our health-concern categories.
Our methodology
Every guide is built from primary sources — peer-reviewed trials, systematic reviews, and regulator guidance — and graded on the strength and independence of that evidence. We trace study funding and conflicts of interest rather than relying on self-disclosures, and we keep prevention advice separate from supplement claims so the two are never conflated.
Read how we research and grade evidence · See our full source list
Guides are revised as new high-quality research is published.
✚
Cancer
Risk reduction, lifestyle evidence, and supplement claims examined against the trial data.
♥
Heart & Cardiovascular
Cholesterol, lipids, omega-3 and CoQ10 — what protects the heart and what doesn't.
◐
Diabetes & Blood Sugar
Insulin sensitivity, glucose control, and the metabolic-health evidence base.
≈
Asthma & Respiratory
Triggers, management, and the supplement claims tested against respiratory outcomes.
❋
Eczema & Skin
Barrier care, flare management, and which nutrients the evidence actually supports.
⌒
Blood Pressure
Minerals, vascular function, and lifestyle levers for hypertension.
◍
Gut & Digestion
Microbiome, bloating, regularity, and absorption — grounded in the research.
☾
Sleep
Falling asleep, staying asleep, and circadian rhythm — behavior first, supplements second.
◇
Stress, Anxiety & Depression
Adaptogens, amino acids, and mood support — and the evidence behind each.
↘
Fat Loss & Metabolism
What actually moves the needle for weight and metabolic health (and what doesn't).
✦
Energy & Focus
Fatigue, cognition, and mitochondrial support — evidence vs hype.
⬢
Muscle Building
Protein, creatine, and hypertrophy — the strength and performance evidence.
❂
Neurology & Brain Health
Narcolepsy, cognition, neurodegenerative risk — the neurological evidence.
◈
Autoimmune & Inflammatory
Rheumatoid arthritis and immune-mediated inflammation evidence.