High levels of caffeine can result in babies having a low birth weight, which can increase the risk of health problems in later life. Too much can also cause miscarriage. Caffeine is naturally found in lots of foods, such as coffee, tea, chocolate and is added to some soft drinks and energy drinks. You shouldn’t have more than 200mg of caffeine a day. The approximate amounts of caffeine found in food and drinks are:
- one mug of instant coffee: 100mg
- one mug of filter coffee: 140mg
- one mug of tea: 75mg
- one can of cola: 40mg
- one can of energy drink: 80mg
- one 50g bar of plain (dark) chocolate: around 50mg
- one 50g bar of milk chocolate: around 25mg.