BMI is an strange number, and I know its used a lot. For example, insurance companies often look at BMI to gauge how much overweight a person is. There's just one problem. What if a person is an athlete? Its well known that muscles weigh more than fat. My BMI says I'm darn near being overweight, but if you look at me I look skinny. Why? I'm a cyclist and I have some massive leg muscles. Thats where all my weight is. So, BMI and kava. What role does fat play in the absorption of kava in the body? I have no idea, but its bound to play some sort of role, as
@Pacifico suggests. Also, each person is different as far as sensitivities. I've always been very sensitive when it comes to kava. I never had RT, and usually after just one cup I'm really feeling it. (I'm about 6'4" tall and weigh around 200 lbs.)