How they affect you
: Food high in saturated fat, like steak (certain cuts, like rib-eye, are fattier than others), French fries, and ice cream, is difficult for the body to digest and can make you feel uncomfortably full and increase the chances of acid reflux, according to Palinski-Wade.
If you already suffer from heartburn, fatty food can make it even worse by relaxing the valve that seals off the stomach from the sphincter. The loose valve can cause stomach acid to rise into the esophagus and result in a really unpleasant case of heartburn, says Karen Ansel, nutritionist and dietitian.
What you can do: If you’re jonesing for a steak, burger, or other high-fat meal tonight, remember not to combine it with alcohol, which can further irritate your GI tract, says Palinski-Wade. Whenever possible, cook meals in plant-based fats, such as olive oil, which is easier to break down than saturated fat, like butter.