Note 1 - Description of Business	12 Months Ended
Dec. 31, 2025
Notes to Financial Statements
Nature of Operations [Text Block]	NOTE 1. DESCRIPTION OF BUSINESS Summary FitLife Brands, Inc. (the “Company”) is a provider of innovative and proprietary nutritional supplements and wellness products for health-conscious consumers marketed under the following brand names: (i) NDS Nutrition, PMD Sports, SirenLabs, Core Active, Nutrology, and Metis Nutrition (together, the “NDS Products”); (ii) iSatori, BioGenetic Laboratories, and Energize (together, the "iSatori Products"); (iii) Dr. Tobias, All Natural Advice, and Maritime Naturals (together, the “MRC Products"); (iv) MusclePharm; and (v) Irwin Naturals, Applied Nutrition, and Nature’s Secret (together, the “Irwin Products”), each of which was acquired in August 2025. The Company distributes the NDS Products principally through franchised General Nutrition Centers, Inc. (“GNC”) stores located both domestically and internationally. The iSatori Products are sold through retail locations, which include specialty and mass market retailers, as well as online directly to the end consumer. The Company distributes the MRC Products primarily online through e-commerce platforms, such as Amazon, directly to the end consumer. MusclePharm’s products are sold to both wholesale customers as well as online through various e-commerce platforms directly to the end consumer. Irwin Products are sold principally through wholesale channels in mass market and health food store segments. FitLife Brands is headquartered in Omaha, Nebraska. For more information on the Company, please go to www.fitlifebrands.com. The Company’s common stock, par value $0.01 per share (“Common Stock”), trades under the symbol “FTLF” on the Nasdaq Capital Market. Stock Split On February 7, 2025, the Company effected a 2-for-1 stock split of its Common Stock and proportionately increased the number of authorized shares of Common Stock to 120,000. All share and per share information throughout this Annual Report on Form 10-K has been retroactively adjusted to reflect the stock split as of the earliest period presented. The shares of Common Stock retain a par value of $0.01 per share. Accordingly, an amount equal to the par value of the additional shares issued in the stock split was reclassified from additional paid-in capital in excess of par value to Common Stock. Acquisition of Irwin Naturals On August 8, 2025, the Company acquired substantially all of the assets and assumed certain liabilities of Irwin Naturals and its related affiliates (“Irwin”) through an asset purchase transaction under Section 363 of the US Bankruptcy Code. Total consideration for the acquisition was $42,500. Of this amount, $29,750 was funded using proceeds from a new term loan provided by First-Citizens Bank & Trust Company (the “Bank”), $6,000 was funded from a new $10,000 revolving line of credit from the Bank, with the remainder funded from the Company’s available cash balances.

Note 1 - Description of Business

12 Months Ended

Dec. 31, 2025

NOTE 1. DESCRIPTION OF BUSINESS

Summary

FitLife Brands, Inc. (the “Company”) is a provider of innovative and proprietary nutritional supplements and wellness products for health-conscious consumers marketed under the following brand names: (i) NDS Nutrition, PMD Sports, SirenLabs, Core Active, Nutrology, and Metis Nutrition (together, the “NDS Products”); (ii) iSatori, BioGenetic Laboratories, and Energize (together, the "iSatori Products"); (iii) Dr. Tobias, All Natural Advice, and Maritime Naturals (together, the “MRC Products"); (iv) MusclePharm; and (v) Irwin Naturals, Applied Nutrition, and Nature’s Secret (together, the “Irwin Products”), each of which was acquired in August 2025.

The Company distributes the NDS Products principally through franchised General Nutrition Centers, Inc. (“GNC”) stores located both domestically and internationally. The iSatori Products are sold through retail locations, which include specialty and mass market retailers, as well as online directly to the end consumer. The Company distributes the MRC Products primarily online through e-commerce platforms, such as Amazon, directly to the end consumer. MusclePharm’s products are sold to both wholesale customers as well as online through various e-commerce platforms directly to the end consumer. Irwin Products are sold principally through wholesale channels in mass market and health food store segments.

FitLife Brands is headquartered in Omaha, Nebraska. For more information on the Company, please go to www.fitlifebrands.com. The Company’s common stock, par value $0.01 per share (“Common Stock”), trades under the symbol “FTLF” on the Nasdaq Capital Market.

Stock Split

On February 7, 2025, the Company effected a 2-for-1 stock split of its Common Stock and proportionately increased the number of authorized shares of Common Stock to 120,000. All share and per share information throughout this Annual Report on Form 10-K has been retroactively adjusted to reflect the stock split as of the earliest period presented. The shares of Common Stock retain a par value of $0.01 per share. Accordingly, an amount equal to the par value of the additional shares issued in the stock split was reclassified from additional paid-in capital in excess of par value to Common Stock.

Acquisition of Irwin Naturals

On August 8, 2025, the Company acquired substantially all of the assets and assumed certain liabilities of Irwin Naturals and its related affiliates (“Irwin”) through an asset purchase transaction under Section 363 of the US Bankruptcy Code. Total consideration for the acquisition was $42,500. Of this amount, $29,750 was funded using proceeds from a new term loan provided by First-Citizens Bank & Trust Company (the “Bank”), $6,000 was funded from a new $10,000 revolving line of credit from the Bank, with the remainder funded from the Company’s available cash balances.