Seeking RDs to discuss the potential link between low-carb (e.g. keto) diets and colorectal cancer. It seems some research suggests keto-like diets are protective and others suggest the opposite, so we're trying to make this a little less confusing for our readers who might be wondering whether or not to do keto, etc. 1)In simple terms, could you please (briefly) sum up the existing research/knowledge about the link between keto diets, specifically, and colorectal cancer risk? Is it complex or nuanced, for example, does most research reach a similar conclusion or has it been inconclusive, etc.? 2)Would you generally recommend people adopt or avoid keto diets for colorectal cancer health? Why/why not? (Please note I’m talking to a doctor about some of the specific research in this area, but I’d also like an RD perspective). 3) Do you generally recommend keto diets at all? Please briefly explain why. 4) Generally, what is the best kind of diet for colorectal health (if not keto) and, briefly, why? 5) If someone wants to follow a keto diet, what are some guidelines they should follow to protect their colorectal health (if that’s something they need to consider)?

Good Day, 1) What do the studies show regarding the relationship between keto and colorectal cancer? It is nuanced. Some research indicates that keto may reduce the risk due to lower insulin and inflammation, but there is also opposing research, especially due to the lack of fiber and high amounts of red and processed meat which are associated with colorectal cancer. It is still too soon to formulate a definitive conclusion since the evidence is not explicit, and a lot depends on the specific approach taken to the keto diet. 2) Would you recommend a keto diet specifically for the prevention of colorectal cancer? Not in the majority of cases. Following a traditional keto diet would be detrimental due to the lack of fiber. If it is a very clean, plant-based, high-fiber version of keto it would be fine, but on the whole, a high fiber diet would be a better option for cancer prevention. 3) Do you recommend the keto diet otherwise? In specific scenarios such as epilepsy or for blood sugar and weight management in the short term. It becomes difficult nutritionally in the long term, especially without careful planning. 4) What is the best diet for the maintenance of good colon health? A high-fiber diet is best, and a plant-based or Mediterranean diet is also very good. Vegetables, fruits, legumes, whole grains, healthy fats, and olive oil are the staples of these diets. These maintain gut wellness, mitigate inflammation, and decrease the risk of cancer. 5) For those considering a keto diet, what can be done to maintain colon health? Prioritize low-carb, high-fiber vegetables like dark leafy greens, zucchini, and cauliflower. Also, include healthy fats such as nuts, olive oil, and avocado, while avoiding red and processed meats. Think about including fermented foods and perhaps a fiber supplement. Even while low-carb, the aim should be to maintain gut-friendly microbes. If you decide to use this quote, I'd love to stay connected! Feel free to reach me at gregorygasic@vmedx.com and outreach@vmedx.com.

The research on keto diets and colorectal cancer risk is still evolving and somewhat divided. Some studies suggest that a low-carb, high-fat diet like keto might reduce inflammation and promote weight loss, potentially lowering cancer risk. However, other studies indicate that the high intake of red and processed meats, common in many keto plans, could increase cancer risk due to the compounds formed during cooking. Most research has been inconclusive, as the long-term effects are still being studied. I wouldn't typically recommend a keto diet for colorectal cancer prevention, mainly due to its reliance on high-fat, animal-based foods that may raise cancer risk. However, for individuals without colorectal health concerns, it may be worth exploring under a healthcare provider's guidance. I don't generally recommend keto diets due to their restrictive nature and potential long-term risks, especially when not carefully balanced. There's a lack of sufficient long-term research to support its safety for many people. A diet rich in fiber, fruits, vegetables, and whole grains is best for colorectal health. These foods support gut health, promote regular bowel movements, and provide protective compounds like antioxidants and phytochemicals that may help prevent cancer. For those committed to a keto diet, I'd recommend focusing on healthy fats, like those from avocados and olive oil, and minimizing processed meats. Including more fiber-rich low-carb vegetables like leafy greens can help maintain gut health while following keto.