The phrase "fitness freaks" refers to people who are very enthusiastic and passionate about staying fit and leading a healthy lifestyle. Full definition
Today we are finding and challenging our inner fitness freak! (fcnextdoor.com)
Those three are recommended for fitness freaks who are actually going to use them to track workouts and train for fun triathlons or 5Ks. (digitaltrends.com)
iPhone 7 Plus armbands are without doubt the best companion of fitness freaks. (indabaa.com)