We’ve come a long way in terms of nutrition knowledge and exercise protocols for achieving a better physique and improved fitness. Plenty of peer-reviewed research in diet and exercise has led to practical strategies for your personal plan. I think it is safe to say we have a grasp on calorie surplus/deficit and the laws of thermodynamics, the good carb versus bad carb debate, the most efficient exercise modes for facilitating fat loss and growing shapely muscle mass, improving cardiovascular fitness, and the reality of your genetic make-up relative to achieving those goals.
The proven research is out there, so why are there so many who struggle to achieve their optimal physique and fitness?