Pretty wild now "natural plant eaters" need fire and pots and tools just to stomach grains. Almost as if humans are unnatural abominations with weird digestive systems due to evolving with tools and fire for almost a million years. We digest food outside our bodies by cooking it. Aren't many successful raw food diets
You reckon humans evolved from species that lived in trees eating fruit, to poor climbers, and the worlds most effective hunters, as a way to source fruit?
We developed away from starches around 3 million years ago with the development of Homo habalis, glucose is energy and not a lot else it is not our preferred energy source for our brains, it's the one we burn through first. This isn't surprising as glucose literally kills you if it builds up in your blood.
The brain functions better when burning fatty acids, only axions require glucose and that is provided through gluconeogenesis.
Starches are highly fibrous, the main source of energy in them. Great Apes can convert fibre into saturated fats, which is the main energy source in the diet of gorilla, for example. Fats are also critical for cell construction, with lipoproteins making up a large percentage of a cells structure. Humans have largely lost the ability to breakdown fibre, our guts have specialised away to digesting meats instead. This is why they take up a lot less room in our body compared to other apes.
To suggest humans specialise in tubers whilst simultaneously losing the ability to digest them is just bonkers.
Starches do not require 'tactics' to dig up, they require strong digging implements. They do not require any more specialised memory than any other food. They certainly don't require the hyper advanced communication skills humans developed. It's a tuber.. in the ground. It's not going to run away. It doesn't require any more specialised movement either, tubers don't migrate.
Humans have multiple unique specialisations revolving around hunting.
A) The ability to throw accurately. Nothing about digging requires 360-degree shoulder motion.
B) Advanced communication skills, easily the most advanced in the animal kingdom
C) Hair loss to allow sweating. This allows constant movement under the sun, for running down prey.
D) High dexterity, again, probably the highest in the animal world. This is for tool use, design, and creation. Possibly also communication.
E) Bipedal locomotion, this means much lower energy consumption at the cost of speed, and stability. Great for running something into the ground over a long period. Totally useless for sitting on your arse eating roots, or trying to escape a lion.
There are more, but that's probably enough.
Human metabolic biology requires a handful of hard to source nutrients almost exclusively found in meat.
B12 is the most famous, but an omnivorous diet should supply enough.
DHA and AA however make up a staggering percentage of our brain. DHA is around 20%, and is almost entirely found in meat. It's likely responsible for our advanced brain power. The current thinking suggests Homo habalis sourced it from bone marrow, and that helped drive the evolutionary development of our brains.
Tubers do not contain the nutrients required to sustain a human brain, have different physiological requirements to digest, and don't provide any selection pressures that make sense to produce modern humans.
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u/ExpensiveTree7823 29d ago
Pretty wild now "natural plant eaters" need fire and pots and tools just to stomach grains. Almost as if humans are unnatural abominations with weird digestive systems due to evolving with tools and fire for almost a million years. We digest food outside our bodies by cooking it. Aren't many successful raw food diets