Nutrition · Heart · Skin · Joints · Mental health

Health guidance you can trace back to the source.

Every figure. Every article.

HealthCoachJP covers twelve health topics from primary sources USDA, FDA, NIH, CDC and AHA and shows you the date every article was last checked.

Why HealthCoachJP

Most health blogs give you articles. We show our working.

Every row below is something you can check yourself on any article on this site.

Typical health blogs
HealthCoachJP
Where figures come from
Third-party aggregators, uncredited
Primary sources: USDA, FDA, NIH, CDC, AHA
Unverifiable numbers
Printed anyway
Not printed. We say the sources conflict
How topics connect
Isolated posts
Linked topic hubs across twelve areas
Freshness
No date, or publish date only
A last-checked date on every article
Who wrote it
Anonymous or invented experts
Named writer, stated beat, stated limits
Corrections
Silent edits
Logged and published

Twelve topics, one evidence base

Start where your question is

Each topic is a hub, not a tag. The hub page links every article underneath it.

Free tools

Work it out for yourself

11 calculators and trackers. No sign-up, nothing stored.

BMI Calculator
Calorie Counter
Body Fat %
Sleep Cycle
Exercise Tracker
Nutrition Planner
Weight Loss Planner
Daily Steps
Health Age
Mental Health Quiz
Period Tracker
See all 11 →

Knee Replacement Surgery Cost Without Insurance: What You Can Actually Control

A total knee replacement costs $30,000 to $60,000 without insurance — but the facility you choose, a Good Faith Estimate and hospital charity care can change that figure more than any negotiation.

Medicaid Explained: Eligibility, the Coverage Gap and Work Requirements

Medicaid eligibility, the coverage gap in ten non-expansion states, and the new federal work requirements — including the reason most coverage losses are expected to come from paperwork rather than from not working.

Medicare Explained: Parts A, B, C and D, Costs and Deadlines

Medicare Parts A, B, C and D explained with 2026 costs — plus the gap most guides skip: Original Medicare has no out-of-pocket maximum, and the one-time Medigap window that decides how reversible your choice is.

ACA Metal Tiers Explained: Bronze, Silver, Gold and Platinum

Bronze, silver, gold and platinum explained — what actuarial value really means, why cost-sharing reductions make silver the right answer under 250% FPL, and the 2027 out-of-pocket jump.

Recently checked

Latest research and guidance

Sorted by last-checked date, not publish date.

One email a week. What changed and why.

We send the articles we re-checked that week, and what we got wrong. Nothing else.

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