Is it possible for you to gain weight if you eat only salad for lunch every day why or why not?

It really depends what you're eating the rest of the time...

The average woman should be taking in around 2000 calories a day

• you might think you're being healthy by eating salad for lunch,

but you have to take in the rest of the day as well.

When you eat can have an impact on your weight as well, eating late at night will put on weight as your body has no time to burn off the excess calories and fat, but eating in the morning has less effect.

The best way to work out whether or not there is a problem with your weight is to keep a (truthful) food diary for a bit and calculate how much you're eating.

If, say, you have a small bowl of bran flakes and semi-skimmed milk for breakfast (100 calories), a cereal bar mid-morning (115 calories) salad for lunch (anywhere between 30-300 calories depending on whether or not you have dressing) and then vegetable soup for dinner (200 calories) then, maximum you're taking in that day is 715 calories and if you're putting weight on then you should see a doctor.

However, if you supplement that with chocolate, cake, crisps and Sandwiches then you'd be surprised at how quickly the calories add up...