Rick Wilking/Reuters The keto diet can have strange effects on your body, especially since some following the celebrity-favorite eating plan have experienced weird setbacks like the keto flu and foul-smelling keto breath. And while the diet has been said to have some positive effects on your skin and cholesterol levels, it’s equally important to consider the impacts it has on the your gut, as a big portion of our immune health is definitely found in this area. To see just how the trendy low-carb and low-sugar diet influences your gut, we spoke to some physicians and nutritionists on the topic to see what to look out for in case you are trying the keto diet for the first time.