And one of the biggest culprits of all is processed meats, such as a microwave meal after a long day of work or your bacon sarnie at lunchtime.
However, it turns out they could be a lot worse for you than you think.
A study by Harvard University has revealed processed meats could be increasing your risk of breast cancer.
Processed meats are the ones which have been cured, smoked or salted to last longer in your fridge.
These include bacon, sausages, salami, hot dogs and basically every meat which comes in a tin.
The geniuses over at Harvard University reviewed 15 different studies on cancer and processed foods – covering a grand total of 1.25 million people in the process.
From these studies, they found people who eat a lot of processed meat are 9 per cent more likely to suffer from breast cancer.
According to Cancer Research, over 55,000 people are diagnosed with breast cancer every year in the UK, making it the most common type of cancer for Brits.
Processed meat has been linked to health issues such as bowel cancer in the past – but this is the first study to find a link between the food type and breast cancer.
To be on the safe side, experts recommend limiting your processed food intake to 70 grams a day – which is roughly two rashers of bacon.
Maryam Farvid – who lead the study – said: “This review provides evidence that higher consumption of processed meat is associated with higher risk of breast cancer.”
As seen on