> For 1 burger you need like 4 pounds of vegs In terms of calories, this is technically correct, but the metric of calories is not at all useful in a first-wor

> For 1 burger you need like 4 pounds of vegs In terms of calories, this is technically correct, but the metric of calories is not at all useful in a first-world context. At my local market, £1 gets you about 10,000 kcals of rice or pasta. In other words, any budget above $1 / £1 per day will be able to provide plenty of kcals. Kcals are not the problem. What matters are the other things the body needs. I eat vegetables to provide fiber, vitamins and phytonutrients. I eat meat to provide protein and certain types of fat. In this regard, they're not fungible, because leafy green vegetables are a poor source of protein and meat is a poor source of phytonutrients.