For many of us, it’s a never-ending conversation with ourselves: How to maintain a healthy diet but not feel guilty over every last calorie or less than healthy occasional treat. Most nutrition experts emphasize moderation over obsession. For some of the latest advice, consider the following: The Harvard Men’s Health Watch underscores the value of a plant-based diet, but warns that actual plant-based choices you select make a difference. Longevity points out that a vegan or vegetarian diet may make sense, but you need to take note of the essential nutrients you may be missing if you restrict your diet in this way. One area where there is growing scientific evidence: processed meats seem to be correlated with an uptick in colorectal cancer. While this doesn’t mean you need to banish bacon from your life, it does underscore the need for balance and moderation. And if all of these suggestions are making you confused or cranky, sit back and watch 69-year-old nutritionist (and model) Maye Musk give you nutritional advice as she walks you through the Union Square Green Market in New York City!