Whey protein itself is considered to be low FODMAP, meaning it does not contain high amounts of fermentable carbohydrates that can trigger symptoms in people with irritable bowel syndrome (IBS) and other digestive conditions.
However, it's important to note that some whey protein powders may contain additional ingredients, such as sweeteners, flavorings, and thickeners, that could be high in FODMAPs. Some common high FODMAP additives include inulin, fructose, and high fructose corn syrup. If you are following a low FODMAP diet, it's recommended to choose a whey protein powder that does not contain any added high FODMAP ingredients. Additionally, it's a good idea to start with a small serving and monitor your symptoms to see if you are able to tolerate it.
It's also important to note that everyone's tolerance to FODMAPs can be different, and even low FODMAP foods can cause symptoms in some individuals. If you have concerns about how whey protein powder may affect your digestive health, it's best to speak with a healthcare professional or a registered dietitian who can provide personalized advice.