An outdoor model that uses local grass and rain water.
That cuts back on transport (it is watefull to transport corn and soy around the world and to deforest bigtime to grow these inferious crops) road kills, soy and corn plantations are mono-crops that animals and babies biologically where never intended to consume.
A lot of land is unsuitable for agriculture though suitable for grassland animals.
Animal products contain vitamin B12, omega 3: EPA, DHA, that are essential for brain function.
Vegetables are mainly water and (often) depended on synthetic farming practices.
An acre can generate a few sticks butter (and or beef, whole milk, cream) each 2000 kcal bio available energy.
Compare that in contrast with lettuce an acre output and $ per energy.
Saturated fat is healthy,
eating low amounts saturated fat is an anti libido protocol used to keep the institutionalized calm. Breakfast cereal applies that concept to the masses.
Complete protein is vital,
for building neurotransmitters and muscle upkeep.
The propaganda that force fed the masses (rancid) vegetable oils is deep, the demonetization of tropical oils is part of misleading gimmicks. Coconut oil and cacao oil won't contains trans fat and is less likely to oxidize.
Cholesterol is not a fat it is a kind of waxy substance. Plants do not contain cholesterol and saturated fat is not the same.
That's why butter and eggs deserve to be preferred above chocolate and coconuts because cholesterol is; the building material for sex hormones, vitamin D metabolism, brain and nerve tissue and various repairing processes.
That few mg cholesterol in beef is from a biochemistry standpoint beneficial.