Find Out What Makes Sense Financially Some diets nowadays are subscription- or membership-based, meaning they send the food to you. That can get expensive. Other diets are simple: eat veggies and meat and nothing else. That can be more affordable. There are upsides to both: subscription-based plans can send you food so all you have to do is cook and eat it, while other plans require you to do a bit more work. Let your wallet decide for you.