Your body will catabolize both
Any use outside this age range would need to be specifically determined by a licensed clinician on a case-by-case basis
Navarro M, Olney JJ, Burnham NW, Mazzone CM, Lowery-Gionta EG, Pleil KE, et al
This depends on your starting weight and how your body responds
Judith Korner, professor of medicine in the Division of Endocrinology at New York Presbyterian/ Columbia University Irving Medical Center in New York
Fasted Fasted cardio, AKA hitting the track, treadmill, elliptical, or bike on an empty stomach, has been a popular technique for weight loss for years, with proponents claiming it encourages your body to use stored fat for fuel instead of food