What specific dietary supplement brands have FDA recall notices related to weight‑loss ingredients since 2021?

1. The named brands pulled into recall actions: Modern Warrior and HerbsForever

Recent rounds of FDA notices and secondary reporting explicitly identify Modern Warrior and HerbsForever as brands whose products were voluntarily recalled or added to recall scopes after agencies detected undeclared compounds that have been marketed for weight loss or performance enhancement—regulatory testing found tianeptine, 1,4‑DMAA and aniracetam among the undeclared substances in some product lots tied to these brand names ^{[1] [2] [6]}.

2. What the public notices say about the ingredients and risks

The FDA and news outlets describe several of these undeclared compounds as stimulants or psychoactive agents linked historically to weight‑loss claims; 1,4‑DMAA (a stimulant) and synephrine (a proto‑alkaloid sometimes used in slimming products) have been connected to heightened blood pressure, heart risks and other serious events, and the agency has warned consumers about life‑threatening effects of some adulterants such as tianeptine ^{[7] [1] [2]}.

3. The broader pattern: recalls, warnings and persistent product availability

Academic analysis of FDA warning letters and recalls documents a recurring pattern: enforcement actions remove many products from the market but a significant portion remain available online after notices, and a large share of products initially cited for prohibited stimulants (amphetamine analogues, ephedrine analogues, DMHA/DMBA families) were later found to still be sold or to contain hazardous adulterants—this underscores that named brand recalls are examples of a wider, persistent problem rather than isolated incidents ^[5].

4. Why the public lists are incomplete and how that affects answers

The FDA’s recalls and safety alert pages serve as the authoritative feed, but the agency notes that not all recalls have press releases or are posted on the primary list, and secondary reporting aggregates certain high‑profile expansions of recall scopes rather than compiling every brand affected since 2021—therefore the available reporting identifies Modern Warrior and HerbsForever in the recent expanded actions, while many other recalled or warned‑about slimming supplements may be documented only on specific FDA recall notices or warning letters not included in the provided search snippets ^{[3] [4] [8]}.

5. Enforcement tools, industry responses and competing narratives

Regulatory actions range from warning letters to requests for voluntary recalls and public notices; academic work stresses the FDA’s limited tools and industry responses that include voluntary recalls and relabeling, while consumer advocates point to continued market availability as evidence enforcement falls short—industry statements sometimes frame removals as proactive quality‑control, whereas public‑health advocates emphasize the recurring detection of analogues of amphetamine, ephedrine and other banned stimulants linked to serious adverse events ^{[5] [9]}.

6. Conclusion and limits of this review

Based on the provided reporting, Modern Warrior and HerbsForever are the specific consumer brands explicitly linked in FDA recall notices or expanded recall reporting to undeclared weight‑loss–associated ingredients since 2021, but the data in the supplied sources is not a comprehensive national inventory; the FDA’s recall pages and the peer‑reviewed literature indicate many additional supplements and manufacturers have faced warnings or recalls for similar adulteration patterns though those brands are not named in the excerpts supplied here ^{[1] [2] [3] [5]}.