If you’re basing your intake on how many calories you’re eating, then it might be more than you think. Sarah says, “A lot of people choose 1200 calories to be the magic number for dieting, which is in fact too low for most healthy individuals. This amount of calories is also very unlikely to meet the entire recommended daily intake for vital nutrients such as calcium, iron, zinc, vitamin A and folate.”
“Metabolism is very important in regulating how our body ultilises energy,” says Sarah. "Factors that affect metabolism include reduced muscle mass, age and (you guessed it) cutting excessive calories over a long period. Restricting calories long term can cause a loss of lean muscle mass, which can contribute to a low metabolism."