Supplement Label Overlap & Daily Totals

Find duplicate ingredients across supplement labels. A focused MIT-licensed browser tool: no account, no dependencies and no label uploads.

Can supplement labels contain duplicate ingredients? Yes. Matching label names can overlap. List those overlaps and calculate daily mass totals for verified names with complete quantities.

Try the task on NutriAudit · Examples & FAQ · MIT license

Run locally

Requires Python 3 to serve static files. Node.js 22 or 24 is only needed for tests.

git clone https://github.com/JinHanAI/nutriaudit-label-overlap.git
cd nutriaudit-label-overlap
python3 -m http.server 8080 --bind 127.0.0.1

Open http://127.0.0.1:8080/index.html. Select Load example or enter your own labels. Label comparison and arithmetic stay in the browser.

Mobile demo

Worked example

200 mg/day calcium from A plus 0.5 g/day from B equals 700 mg/day. This is arithmetic, not a safety threshold.

The sample is synthetic and is not a personal assessment. Changing inputs clears the previous result.

Included tasks

This project shows only duplicate, daily-total. It reuses the MIT core from NutriAudit Label Tools at commit ec9615a2212c3cce01c98e2fdf5dbba85dab1f7f; it is not a new medical algorithm.

Limits

• A name overlap is not proof of the same chemical form or harmful interaction.
• Verified daily mass arithmetic covers calcium, vitamin C, D2 and D3. Other names can be listed without a numerical total.
• Only mcg/mg/g conversions. IU, %DV and volume are not guessed. Missing amounts stay unknown.
• This cannot assess drug interactions, abnormal lab results, clinical safety or personal suitability.

Continue with your full supplement stack

The result includes a NutriAudit stack-audit link. It transfers no labels or notes. Add actual products on the main site; start with the free preview and decide whether to buy the full report. The hosted service is outside this MIT package.

Links have fixed channel tags: github, label_overlap and the link position. The standalone demo sends no analytics requests. Hosted-site analytics can distinguish project referrals; blocking analytics or losing tags can leave the origin unknown.

Tests and provenance

node --test tests/*.test.mjs

Source provenance · Attribution links · Security. Never put private labels, notes or credentials in issues.