While an effective weight loss tool when done correctly (which can be really hard to do!), the keto diet has unknown long-term implications. Although at first, keto diets can suppress appetite, they often lead to bingeing and feeling out of control once carbohydrates are reintroduced. As a result, weight regain and an unhealthy relationship with carbohydrates often develops. Furthermore, studies have shown very low carbohydrate diets can lead to low levels of serotonin which can affect energy levels and mood. Studies also show low-carbohydrates diets to negatively affect thyroid hormones which are key to a healthy metabolism. Finally, it is unknown what the long-term effects of a high-fat diet (especially high saturated fat) are on inflammation, colon health, and fatty liver disease. With that said, a well-planned ketogenic diet has shown some promise for weight loss and blood sugar control for a subset of people. The key is to be informed and seek support from experts in determining whether or not a ketogenic diet is right for you.