Ok, I dont want this to sound really bad but I can only ask...... I stopped playing sport 4 years ago due to a bad injury, and while I was playing I was training 3-4 times a week which was enough to keep my weight at bay. My BMI was always higher than what it should be but my doctor always told me that was because BMI does not take muscle mass into account, and it is much heavier than fat mass. Since I stopped though the weight has kept on creeping up until I've had a shock and realised I need to lose it all. From playing many years I have toned arms and legs on the main. Will going on LT have an adverse effect on muscle? Will being in ketosis eat away at my muscle as well as my fat?