I don’t know. Let’s just put aside the fact that they provide essential nutrients such as potassium, fiber and vitamin C, and instead, let’s focus on some of their metabolic effects. And, let’s talk about the standard white potato; sweet potatoes are a whole other topic. So, several studies show a link between eating potatoes and having higher body weight, which suggest that potatoes may cause weight gain. However, it’s important to note that these studies often lump all kinds of potatoes together, meaning boiled or roasted plain potatoes will be lumped with french fries and potato chips. It doesn’t take a nutrition professional to know that they are not the same when it comes to your diet, metabolism and weight! Regardless, I do see an argument for potatoes having the potential to lead to weight gain even if they’re not consumed as fries or chips or even a “loaded” potato. White potatoes are relatively high in calories and starch. If you’re not careful with your portion size, it makes it easier to over consume the energy it offers, and unlike nuts, one of its metabolic benefits is not increasing your fat burning metabolism nor has it been shown to interfere with fat absorption (leading to excreting some of the fat you take in). And, also unlike nuts, it’s caloric content does not seem to be over-approximated. As a result, some people, including some scientists, think that potatoes may as well call themselves Halloween candy. However,I beg to differ, as do the results of a study I coauthored.

While the jury is out on potatoes’ effect on body weight, their intake does seem to have a beneficial effect on metabolism, which is important not just for health, but over the long run, may tilt the scale the way you want it (which I’m guessing is down). Essentially, we found that after eating about 2 potatoes that were cooked and then chilled (aka potato salad) the first day, glucose (blood sugar) metabolism became slightly favorable the next day. It’s thought that this effect may be due to the “resistant starch” found in potatoes, particularly those that have been cooked and then chilled. A single day may not have much effect, but habitual intake may be a different story. More research definitely needs to be done, but I don’t think potatoes are the evil culprit some make them out to be. If you’re interested in learning more about potatoes’ nutrition and potential health benefits, here’s a useful link.