For the most part, overnight oats are good for weight loss. Oats are a nutrient-dense food that provides nutrients known to support weight loss, including fiber and protein. However, if you are trying to lose weight, it’s important that you pay attention to what you’re adding to your overnight oats. If you’re combining them with ingredients that are high in added sugar or unhealthy fats, then the oats may not have the weight loss benefits that you are looking for. Overall, I recommend oats as the perfect addition to a balanced diet.