Food recall

Dynamic Sports Nutrition recall: Anabolic Research WINN-50 (vanazolol)

Dynamic Sports Nutrition, of Humble, TX, recalled Anabolic Research WINN-50 (vanazolol). The FDA's reason: “Dietary supplement involved degradation of an ingredient. Product is sub-potent for Vitamin B12 not meeting label claims.” The FDA classified it Class III: it is unlikely to cause harm. The company began the recall voluntarily on July 28, 2025, and the FDA first listed it in its Enforcement Report of September 17, 2025. The FDA has closed the recall: it found the company did all it reasonably could to remove or correct the product.

How serious

Class III

It is unlikely to cause harm

Why

Labeling, packaging or manufacturing problems

Status

Terminated

Closed February 6, 2026

The recall

Company
Dynamic Sports Nutrition (Humble, TX)
Reason, in FDA's words
“Dietary supplement involved degradation of an ingredient. Product is sub-potent for Vitamin B12 not meeting label claims.”
Where it was sold
Nationwide
Recall began
, by the company
FDA classified it
First in an FDA Enforcement Report
FDA event number
97377

The product recalled

As the FDA describes them, with the codes that tell whether a package is part of the recall.

  • H-0573-2025 Class III

    Anabolic Research WINN-50 (vanazolol). Dietary Supplement. 90 Capsules. UPC 8 51840-00707 6. Manafactured For: Anabolic Research, 6942 FM 1960 E. #346, Humble, TX 77346-2706.

    Codes: LOT: 2307149 MFG: 07/2023

    Quantity: 1,566 bottles -2.4 oz each

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Source and notes

U.S. Food and Drug Administration, Enforcement Reports (openFDA food recall data) (Public domain (U.S. government work); source U.S. Food and Drug Administration, openFDA), data as of September 17, 2025.

Each week the FDA lists the recalls it has classified in its Enforcement Report, often weeks after the company announced the recall, so a month with five weekly reports tends to count more. Each recall counts once, however many products it covers, in the month FDA first listed it. Class I means the food could cause serious harm or death, Class II temporary or minor harm, and Class III is unlikely to harm anyone. Meat, poultry and most egg products are recalled by the U.S. Department of Agriculture, not the FDA, and aren't included. For what to do with a recalled product, see the FDA's recalls page.