Longevity guidance ranked by human trials — and verified by reliable kosher certification.

This site was built for you if —

• ✓You take medications and supplements and want them to work together — not against each other.
• ✓You want longevity guidance without hype — ranked by published human trials, not press releases.
• ✓You only use products with reliable kosher certification (OU, OK, Star-K, CRC, KOF-K, Badatz).
• ✓You want material you can actually discuss with your physician and your rav.
• ✓You’re confused by gelatin capsules, softgels, dairy/fish status, or sudden hechsher changes on familiar SKUs.

The kashrut gap in longevity science.

Longevity research moves fast. Kosher certification lags behind — and most longevity sites ignore it entirely. Three gaps this site closes:

• 1 Hechsher isn’t a yes/no. OU, OK, Star-K, CRC, KOF-K, and Badatz each carry different acceptance patterns across communities. We document them — your rav still decides.
• 2 Capsule shells matter. Bovine gelatin, fish gelatin, and vegetarian HPMC carry different halachic implications. Most supplement brands don’t disclose. We audit and label every recommended SKU.
• 3 Pareve, dairy, Pesach status — verified per SKU. Year-round kosher doesn’t mean Pesach-acceptable. Pareve doesn’t mean shell-free. We check each, every quarter.

If you take Metformin, here’s what the free Checkup returns.

One real example from the medication depletion library. The actual tool covers 40+ medications and generates the printable physician + rav sheet automatically.

Both paths are educational. The site doesn’t replace your physician or your rav — it helps you walk into those conversations better prepared.

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One ranked card per supplement.

Every supplement on this site gets a single card: tier, human-trial evidence, hechsher, capsule shell, and the recommended SKU. No guessing, no aggregated star ratings, no influencer picks.

A research tool. Not a store, clinic, or rav.

• ×Not a supplement store. We don’t hold inventory. We link to the brand that owns the SKU.
• ×Not a medical clinic. Nothing here replaces your physician’s evaluation or prescribing.
• ×Not a rabbinic authority. Hechsher reliability is documented, not ruled on. Your rav decides.
• ✓A research-and-verification tool. Affiliate-funded so it stays free. When you buy through a link, the retailer pays us a commission. Ranking is independent of revenue — we don’t accept payment to rank brands higher, and we publicly list every brand we’ve declined.

Five steps, in order. No guessing.

Meds first, then nutrient depletions, then baseline tests, then the kosher stack, then a 3–6 month retest.