The Recall Desk
ModerateFDA (Food)·H-0573-2025·Announced 2025-09-17

WINN-50 dietary supplement recalled after testing subpotent for vitamin B12

Anabolic Research WINN-50, 90 capsules, lot 2307149, is recalled nationwide because degradation of an ingredient left the product subpotent for vitamin B12. 1,566 bottles are affected.

What this means for you

Minor labeling or packaging issue, or a voluntary precautionary recall. Risk of harm is low but real — follow the manufacturer's instructions.

Our severity reasoning: The rubric puts FDA Class III actions at 1 or 2, and this is a potency shortfall against a label claim with no health hazard described.

Plain-English summary

Anabolic Research WINN-50 (vanazolol) dietary supplement, 90 capsules, UPC 8 51840-00707 6, manufactured for Anabolic Research of Humble, Texas, is being recalled. The affected product is lot 2307149, manufactured 07/2023, and the recall covers 1,566 bottles of 2.4 oz each distributed nationwide.

The recall was issued because degradation of an ingredient left the product sub-potent for vitamin B12, not meeting label claims. The FDA classified the action as Class III.

Customers holding this lot should stop using the product and can return it to the seller.

The recalled product

Product
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.
Manufacturer
Dynamic Sports Nutrition
Category
Food — Dietary Supplement
Hazard
  • subpotency
  • ingredient-degradation
  • class-iii

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Lot numbers (1)

  • LOT: 2307149 MFG: 07/2023

Distribution

Distributed nationwide across the United States.

Related recalls

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