Scientists say eating too much processed meat - like bacon, ham, or some sausages - can be bad for your health.
They did a study of half a million people and found that those who ate lots of processed meat products - meat preserved using salt, smoke or chemicals - were more likely to get serious health problems in the future.
The UK government recommends people eat no more than 70 grams of processed meat each day - the same as a couple of slices of bacon. But this report recommends people eat just 20 grams.
The study actually found that eating a little bit of meat - even processed meat - had health benefits.
Meat contains lots of nutrients like protein and iron which are essential to keep your body fit and healthy.
Experts say that lean meat like chicken and turkey is healthiest.
The study followed people from 10 European countries for around 13 years.