American Supplement Association

Science, Quality and Standards

ASA brings scientific review and quality-system thinking into policy, education, member practice, and defined programs. Its documents state their scope, evidence basis, approval status, and whether they establish a requirement, recommend a practice, state a position, or provide education.

ASA brings scientific review and quality-system thinking into policy, education, member practice, and defined programs. Its documents state their scope, evidence basis, approval status, and whether they establish a requirement, recommend a practice, state a position, or provide education.

Scientific affairs

ASA’s scientific work begins with a defined question and a method proportionate to the conclusion. Reviews consider identity, dose, duration, population, study design, outcomes, consistency, directness, limitations, and applicability to the actual decision.

Review Scientific Affairs

Quality and manufacturing

Quality work addresses systems used to establish identity, specifications, supplier controls, production and holding controls, laboratory practice, release, traceability, complaints, and corrective action. Resources identify which party and operation they address.

Review Quality & Manufacturing

Code of Responsible Practice

The Code establishes baseline responsibilities for ASA members. It addresses lawful conduct, quality responsibilities, claims, accurate records, conflicts, scientific integrity, participation, ASA identity, and cooperation with legitimate review.

Read the Code of Responsible Practice

Voluntary guidelines and best practices

ASA may publish practical recommendations developed through subject-matter and affected-party review. A voluntary guideline does not become a legal requirement or membership obligation merely because ASA published it.

Browse voluntary guidelines

Standards development

ASA uses an enhanced procedure before calling a document an ASA standard. The process defines need, scope, participation, conflicts, evidence, review, comment disposition, approval, publication, maintenance, and appeal.

Review the Standards Development Process

Safety and market integrity

Safety information, adverse events, adulteration, misleading claims, and misuse of ASA status require different routes and authorities. ASA provides a clear concern channel while directing emergencies and legally required reports to the appropriate public authorities.

Review Safety & Market Integrity

Document types and authority

Document type What it means Typical authority
Code or requirement Binding within the stated ASA membership or program scope Board or expressly delegated authority
ASA standard Normative criteria developed under the enhanced procedure Board unless validly delegated
Voluntary guideline Recommended responsible practice Authorized committee and approver
Technical specification Defined method, format, terminology, or performance criteria Authority named in the document
Position statement ASA’s adopted view on a defined issue Policy approval route
Educational resource Information that explains or supports decisions Designated content authority

Readers should use the document’s own status and effective date. A resource card or search label does not change its authority.

Integrity controls

Scientific and technical work uses:

  • qualified authors and reviewers;
  • relevant conflict and funding disclosure;
  • source and version control;
  • defined evidence and review methods;
  • material limitation statements;
  • documented approval;
  • scheduled maintenance;
  • correction, supersession, and withdrawal procedures.

Read Ethics & Transparency

Use ASA technical resources

Browse science and quality resources

To understand how normative documents are developed, review the standards process.