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Science-backed supplement reviews, guides, and category deep-dives.

Astaxanthin Benefits: What 12 mg a Day Can and Can't Do

Astaxanthin Benefits: What 12 mg a Day Can and Can't Do

Astaxanthin has real human data for skin moisture and eye strain, but not for wrinkles, hair or weight loss. See the doses tested, the safety limits and who should skip it.

Dr. Sarah Mitchell ·

L-Theanine Dosage: 200 mg Is the Number Most Trials Use

L-Theanine Dosage: 200 mg Is the Number Most Trials Use

Most trials use 200 mg of L-theanine a day. See how dose changes with caffeine, timing and goal, plus the beta-alanine dose people confuse it with.

Dr. Sarah Mitchell ·

Berberine Side Effects: What Actually Happens and Who Should Skip It

Berberine Side Effects: What Actually Happens and Who Should Skip It

Most berberine side effects are digestive and dose-related. See the serious warning signs, drug interactions, liver questions and who should avoid it altogether.

Dr. Sarah Mitchell ·

Lutein vs Zeaxanthin: Why the 5:1 Ratio Beats Picking a Winner

Lutein vs Zeaxanthin: Why the 5:1 Ratio Beats Picking a Winner

Lutein dominates your diet, zeaxanthin dominates your fovea. See what each does, what the 10 mg to 2 mg ratio means, and who needs a supplement.

Dr. Sarah Mitchell ·

Digestive Enzymes Benefits: Who They Help and Who Should Skip Them

Digestive Enzymes Benefits: Who They Help and Who Should Skip Them

Enzymes clearly help with lactose, beans and diagnosed pancreatic insufficiency. For everyone else the evidence is thin. See who benefits, what to take and when.

Dr. Sarah Mitchell ·

Apigenin for Sleep: What 50 mg Does, and What No Trial Shows

Apigenin for Sleep: What 50 mg Does, and What No Trial Shows

Apigenin for sleep rests on chamomile trials, not 50 mg capsule trials. See what the evidence shows, realistic doses, drug cautions and who should skip it.

Dr. Sarah Mitchell ·

Ubiquinol vs Ubiquinone: Delivery Can Matter More Than the Form

Ubiquinol vs Ubiquinone: Delivery Can Matter More Than the Form

Ubiquinol often raises blood CoQ10 levels more, but delivery can matter more than form. Compare absorption, cost, safety, and label cues before buying.

Dr. Sarah Mitchell ·

Supplements to Avoid Before Surgery: 4 Risks, Stop 2 Weeks Early

Supplements to Avoid Before Surgery: 4 Risks, Stop 2 Weeks Early

Learn which supplements can affect bleeding, anesthesia, blood pressure, or glucose, when to stop them, and what to tell your surgical team.

Dr. Sarah Mitchell ·

Milk Thistle Benefits: Modest Trial Gains, Dose and Label Checks

Milk Thistle Benefits: Modest Trial Gains, Dose and Label Checks

Human trials show modest liver enzyme changes in NAFLD, but no clear benefit for hepatitis C or NASH. Check interactions, dose, and label quality first.

Dr. Sarah Mitchell ·

3 Grams a Day: HMB Benefits for Older Adults and Why Labels Underdose

3 Grams a Day: HMB Benefits for Older Adults and Why Labels Underdose

An evidence-first look at HMB for older adults and recovery. Learn the trial-backed 3 grams a day dose, safety profile, and how to avoid underdosed products.

Dr. Sarah Mitchell ·