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Vitamine D op Breedtegraad (Diepgaand) — Gratis online tool

Breedtegraad × huidtype × seizoen → persoonlijk IE-doel

Persoonlijk vitamine D supplement-advies op basis van breedtegraad, Fitzpatrick-huidtype, seizoen en binnentijd. Geen registratie nodig.

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Meer weten

Vitamin D Dose by Latitude (Personalized)

Personalized vitamin D3 supplement target based on latitude, Fitzpatrick skin type, season, indoor time, body weight. Standard recommendations under-dose for many.

How to use this tool

  1. 1

    Enter latitude

    Where you live (city → lookup if unsure).

  2. 2

    Skin tone + lifestyle

    Fitzpatrick + indoor hours.

  3. 3

    Personalized IU/day

    Often 2-3× standard recs.

Frequently Asked Questions

Why is the standard recommendation often too low?
US RDA = 600-800 IU. Set in 1990s based on bone health. Modern data (Holick 2011 et al.) suggests 2000-4000 IU/day for most adults. Especially: dark skin (5-10× more sun needed), high latitudes (winter UVB inadequate Oct-Apr above 35° lat), indoor lifestyles.
Should I test serum 25-OH-D?
Yes — single most useful biomarker. Target: 40-60 ng/mL (100-150 nmol/L). Kosten: $50-75 in US. Test 1-2× per year, especially end of winter (lowest) and end of summer (highest). Adjust dose based on level, not formula.
D3 vs D2?
D3 (cholecalciferol). Period. D2 (ergocalciferol) raises 25-OH-D less effectively, is less stable, and primarily exists for orthodox-religious / vegan reasons (D3 traditionally from lanolin, but vegan D3 exists from lichen).

Belangrijkste punten

  • Vitamin D by Latitude (Deep) is a free, browser-based calculator tool — lat × skin × season → personalized iu target.
  • Nee signup, no downloads, no file uploads. Tools run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Vitamin D by Latitude (Deep)

  1. Open the tool: Launch Vitamin D by Latitude (Deep) on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Vitamin D by Latitude (Deep) — Quick Facts

Prijs
Gratis — geen limieten, geen watermerk, geen paywall
Privacy
Wordt in je browser verwerkt. Tools die een externe dienst nodig hebben, vermelden dat op de pagina. Paginabezoeken worden geteld (Google Analytics).
Platform
Elke moderne browser — desktop, tablet of mobiel
Categorie
Rekenmachine Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FunctieDetails
ToolVitamin D by Latitude (Deep)
CategorieRekenmachine
Aanmelden vereistNee
Bestand uploadenGeen — verwerkt in browser
Mobiel ondersteundVolledig responsive
KostenVoor altijd gratis

Why Use Vitamin D by Latitude (Deep)?

You should try Vitamin D by Latitude (Deep) for a quick, private way to lat × skin × season → personalized iu target. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. Deze tool draait volledig in je browser. Je gegevens worden nooit naar een server geüpload.