Peanut oil is high in fat and doesn't contain any FODMAPs.
Remember that fat affects gut motility and might trigger flareups in some people.
Peanut oil, also known as groundnut oil or arachis oil, is a vegetable oil derived from peanuts. The oil has a strong peanut flavor and aroma. It is often used in American, Chinese, South Asian and Southeast Asian cuisine, both for general cooking and in the case of roasted oil, for added flavor.
According to the USDA data upon which the following table is based, 100 g of peanut oil contains 17.7 g of saturated fat, 48.3 g of monounsaturated fat, and 33.4 g of polyunsaturated fat.