am Fry of the National Obesity Forum called for children to be banned from playing the game, claiming the BMI measurement was misleading.
"I'm absolutely aghast that children are being told they are fat," he said.
"BMI is far from perfect but with children it simply should not be used.
"A child's BMI can change every month and it is perfectly possible for a child to be stocky, yet still very fit.
"I would be very concerned if children were using this game and I believe it should carry a warning for parents."
Nintendo said today it would not be placing a warning on the game.
A spokesman said: "Nintendo would like to apologise to any customers offended by the in-game terminology used to classify a player's current BMI status, as part of the BMI measurement system integrated into Wii Fit.
Wii Fit is still capable of measuring the BMI for people aged between two and 20 but the resulting figures may not be entirely accurate for younger age groups due to varying levels of development."
"I'm absolutely aghast that children are being told they are fat," he said.
"BMI is far from perfect but with children it simply should not be used.
"A child's BMI can change every month and it is perfectly possible for a child to be stocky, yet still very fit.
"I would be very concerned if children were using this game and I believe it should carry a warning for parents."
Nintendo said today it would not be placing a warning on the game.
A spokesman said: "Nintendo would like to apologise to any customers offended by the in-game terminology used to classify a player's current BMI status, as part of the BMI measurement system integrated into Wii Fit.
Wii Fit is still capable of measuring the BMI for people aged between two and 20 but the resulting figures may not be entirely accurate for younger age groups due to varying levels of development."