Earlier quoted context omitted.
Thanks for asking! but unfortunately I haven't written anything up about it, but informally I can share that it's really benefited our health and even finances. Eating beans and rice every day and not eating out is very cheap. I buy most of our food in bulk online or from local farms - e.g. just got 50kg of chickpeas in the mail and 20kg of string beans from a farm. We also avoid eating oil for health reasons
The minimum daily intake of carbs for a human to remain healthy is zero. The minimum daily intake of oil is in fact, not zero, as oils are required for the basic functioning of a human.
Vegetables, especially if you eat them in amounts that sustain your weight, have enough omega essential fatty acids to last you a lifetime.
Legumes do have fat in them.
If you eat 2000kcal of red lentils, there's more than enough protein and fat content, almost meets your omega-3 essential fatty acid requirement. Nothing stops you from adding different fattier vegetables.