For the first 18 weeks of my IM training my weight has stayed at 159lbs +/- 1lbs, body fat of 5.0% +/- 0.3, and water weight of 70% +/- 4; but over the last week my weight has nose-dived to 156 while my body fat and water weight have stayed nearly the same. I'm 6'0" with a naturally slight frame. This is the heart of my IM training, so maybe I should expect the weightloss, but where is the weight coming from? Am I losing muscle mass?
For the docs that will ask: I'm eating about 3500-4000 calories per day, supplementing my protein intake to be about 1g protein per lbs of weight, eat lots of fruits and veggies, drink ~4 bottles of water during the day and nurse a jug of water at night, don't eat sweets, and have no digestive system problems.
Any thoughts besides telling me to go see a doctor?
For the docs that will ask: I'm eating about 3500-4000 calories per day, supplementing my protein intake to be about 1g protein per lbs of weight, eat lots of fruits and veggies, drink ~4 bottles of water during the day and nurse a jug of water at night, don't eat sweets, and have no digestive system problems.
Any thoughts besides telling me to go see a doctor?