Fast Metabolism + Lots of cardio

[Matthaibox]

I am 6foot 175 lbs. Since I started training in thai kickboxing I have been rapidly losing weight, about 5 lbs in 6 days. I have increased my water intake and have been increasing protein and calories by drinking a few more protein shakes per day.

Anyone have any similar problems?

[Clifford]

Eat.

[IrishAssassin]

yeah man when you start training more intense your body just needs more to keep going, i would suggest eating more real food too not just extra shakes

[Rugger12]

yes, eat a lot, and often

[Dan's Knuckles]

Here's an idea; EAT SOME CARBS!!! Also, make sure that you're getting all the nutrients you need, including the essential fatty acids.