Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2024	Nov. 13, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	000-52369
Entity Registrant Name	FITLIFE BRANDS, INC.
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	20-3464383
Entity Address, Address Line One	5214 S. 136th Street
Entity Address, City or Town	Omaha
Entity Address, State or Province	NE
Entity Address, Postal Zip Code	68137
City Area Code	402
Local Phone Number	991-5618
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	FTLF
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		4,598,241
Entity Central Index Key	0001374328
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false