Can Lactose Intolerance start to show symptoms in teens?
Yep – some people are born with a reaction to lactose, some develop it later in life. Some lactose could cause a reaction and some could not. I would suggest monitoring the situation for now – it may not be lactose intolerance. If you believe it is then carefully monitor what specifically you eat and if there is a reaction, maybe you can figure out what specifically sets you off. For example you may be able to eat yogurt fine, some types of cheeses but not other types, etc., etc. You could also try a generic lactose pill that helps your body digest lactose – they are pretty cheap.
