Print, then write by hand
Use your browser’s Print command (Ctrl+P or ⌘P). The print layout has two writing sheets. Choose A4 or Letter and check the preview; browser margins and headers can affect pagination.
There is no entry form. Your handwritten notes are not collected by this page.
SUPPLEMENTCHECKER · BLANK WORKSHEET · SHEET 1 OF 2
Product evidence worksheet
Use one worksheet for one exact product. Record what you checked and when. This sheet does not certify a product or decide whether you should take it.
1. Identify the product
| Detail | Your notes |
|---|---|
| Brand and full product name | Blank writing space |
| Formulation, flavour and form | Blank writing space |
| Package size | Blank writing space |
| Country / market of sale | Blank writing space |
| Lot or batch on the package | Blank writing space |
| Seller and listing URL | Blank writing space |
| Date recorded | Blank writing space |
2. Record the claim and source
| Question | Your notes |
|---|---|
| Exact claim on the package or listing | Blank writing space |
| Testing or certification program named | Blank writing space |
| Official directory or report URL | Blank writing space |
| Date you inspected that source | Blank writing space |
| Status shown: current, historical, expired, withdrawn or not stated | Blank writing space |
| Source report date and validity / expiry dates, if stated | Blank writing space |
| Product, formulation and region in the source | Blank writing space |
| Lot or batch in the source, if any | Blank writing space |
| What the source actually covers | Blank writing space |
If you inspect another source, use another copy of this section. Keep each source’s date and scope with its findings.
SUPPLEMENTCHECKER · BLANK WORKSHEET · SHEET 2 OF 2
3. Record the outcome
Mark the descriptions that fit. Record the actual matching fields, dates and gaps below.
- Matching details; status shown as current. Record the source’s status and validity as observed on your inspection date. Match the exact product, formulation and market. A missing package-lot match stays unverified.
- Matching details; historical or expired record. An old match does not establish current certification. Record the past period and any expiry or withdrawal stated.
- Some details differ. Describe the product, formulation, region, size or batch difference. Do not treat a similar name as an exact match.
- No matching record found. Record the directory and search used. This does not prove the product is unsafe or that no valid record exists elsewhere.
- Source unavailable or unclear. Keep the outcome unknown. Do not fill a missing result with an assumption.
Matching fields, differences, unresolved details and source links
4. Questions before relying on the claim
- Does this record cover this exact product, formulation and market?
- Does it cover the package lot supplied, or a different sample?
- Can you obtain the original source or report, including its date and scope?
- Which claims are independently supported, and which are manufacturer statements?
These are prompts for your own enquiry. No message has been sent.
Start with the named program
Use the official source for the program named on the label. These programs are distinct; a brand name alone is not an exact-product match.
- NSF Certified for Sport
- NSF dietary supplement listings
- USP verification
- Informed Sport
- Informed Choice
Read the Informed Sport batch-check guidance and NIH consumer guidance for their stated limits. Certification and quality seals do not guarantee safety, effectiveness or personal suitability. Discuss questions about taking a supplement with a qualified healthcare professional.