When following an appropriate diet during pregnancy, which is very important for the proper development of the pregnancy and the health of the baby, particular attention should be paid not only to what is eaten, but also in what quantities. There are many products the consumption of which, especially in excessive quantities, can significantly jeopardise the safety of both mother and foetus. There is no doubt that the most valuable foods are those that are as natural and as little processed as possible. There is too little fruit and vegetables in our diet, which provide many vitamins and trace elements, and too much highly processed food, which loses much of its nutritional value during processing.

Unhealthy eating habits can have a very detrimental effect on pregnancy and the future baby. The most dangerous is the consumption of excessive amounts of food. A pregnant woman whose meals contain even the healthiest foods will not be able to maintain a proper diet if she consumes excessive amounts. Such behaviour will not only lead to excessive weight gain, but may entail other ailments or complications associated with it such as obesity, hypertension and oedema, diabetes and others. There is no need to give up any products during pregnancy, but a certain group of products should be under strict supervision.

Consumption during pregnancy is not recommended:

• processed foods,
• foods containing excessive amounts of salt and spices,
• foods known as 'fast food' (hamburgers, hot dogs),
• products containing preservatives, artificial colours and flavours,
• raw, undercooked or undercooked meat,
• soft and mouldy cheeses,
• raw fish and seafood,
• raw eggs and unpasteurised milk,
• excessive amounts of simple sugars,
• heavy, fatty foods,
• fish from unknown sources,
• ready meals and delicatessen products,
• strong coffee and tea,
• alcohol and alcoholic beverages.