Has anyone here actually got wii-fit, can you check please fi it does indeed call you fat for having a BMI of 18.2.
I don't have that low a BMI. In either case a BMI of 18.2 is actually slightly underweight, even for a Japanese person, so it would be incorrect to call said person "fat". Being fat IS a health issue in itself.
Not really no. A fat person who exercises regularly, is much healthier than a skinny person who doesn't. No, it makes you a much less fat person.
Which isn't necessarily healthy either. You need fat to survive.