Rice cakes are a low-calorie, gluten-free snack that can be a healthy addition to your diet when chosen wisely. A plain rice cake typically contains 35 to 60 calories, with minimal fat and protein but a high glycemic index, which may cause blood sugar spikes. While they lack significant fiber and micronutrients, rice cakes can be part of a balanced diet, especially when paired with nutrient-dense toppings like avocado, nut butter, or hummus.