DS Supplements
In-depth reviewDS Supplements offers a personalized dosage calculator for Targeted Nutritional Intervention (TNI) supplements, specifically designed for individuals with Down syndrome (Trisomy 21). Developed by Dr. rer. nat. Petra Buchanan, the app provides free tools to calculate BMI, growth percentiles, and vitamin D levels, offering valuable insights for caregivers.

DS Supplements, as it opens in a browser tab.
Not sure how to add DS Supplements to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
Own DS Supplements? Have us re-run this measurement — we open it in a real browser, cut the network, and send you what survived.
How to install DS Supplements as a PWA
Screenshots
4 images · scroll →Why we recommend DS Supplements
DS Supplements earns a recommendation for its specialized focus on Down syndrome, offering a personalized dosage calculator for Targeted Nutritional Intervention. The app is developed by Dr. rer. nat. Petra Buchanan, adding professional credibility. Beyond supplement calculations, it provides additional free tools like BMI, growth percentile, and vitamin D calculators, which are directly applicable to the health monitoring of individuals with Down syndrome. The app clearly outlines the supplements used and their sources, promoting transparency. Its availability in multiple languages (German, English, French, Spanish, Portuguese) enhances its accessibility to a global audience, making it a valuable resource for caregivers seeking targeted nutritional guidance.
Best use cases
Best for: Caregivers of individuals with Down syndrome (Trisomy 21) who need a personalized calculator for supplement dosages. It's ideal for those looking to quickly determine BMI, growth percentiles, and vitamin D levels. The app also serves as a resource for understanding specific supplements relevant to TNI and staying informed on related news and updates in the field of Down syndrome nutrition.
Honest limitations
This app is specifically tailored for Down syndrome (Trisomy 21) and is not intended for general supplement dosage calculations for other conditions. While it offers free tools and calculators, it does not provide medical advice and should not replace consultation with healthcare professionals. There is no evidence of offline support, meaning an internet connection is likely required for full functionality.
Are you the maker of DS Supplements? Claim this listing →
Similar to DS Supplements
PDFCheetah offers 20 free online tools for managing PDF files directly in your browser. Users can merge, split, compress, edit, sign, protect, and convert PDFs to or from JPG/PNG formats. It operates without file uploads, account creation, or daily limits, ensuring your documents remain on your device.
PDFMinty is a privacy-first, browser-based PDF toolkit offering 22 tools for managing documents. Users can merge, split, compress, protect, convert, and edit PDFs directly in their browser. All processing occurs locally, ensuring files remain on your device, making it suitable for sensitive documents.
Avenyora is a personal space for reflective insights, journaling, and saved readings. It helps users understand patterns shaping love, emotions, and decisions through personalized cosmic profiles. The app offers tools for grounded astrology, relationship insights, and AI-guided journaling, providing a continuous experience built around individual patterns.
Boxbreathing is a free, distraction-free progressive web app designed for box breathing exercises. Users can set custom intervals and session lengths to practice this calming technique. It aims to reduce stress and improve focus without requiring an account or displaying ads.

Dayora is an AI journaling companion designed for writing, reflection, and noticing patterns. It offers free AI-powered journaling with mood tracking, voice journaling, and daily AI insights for deeper self-understanding.
The Dyadfit Protein Calculator helps individuals determine their daily protein needs for weight loss, strength training, and those on GLP-1 medication. It provides a personalized daily range and per-meal split, with calculations performed directly in the browser. The tool focuses on supporting muscle maintenance during weight loss.
Own a PWA? See the listing options — standard submission is free.


