eating straight glucose will spike your blood glucose levels. levels above 140-150mg/dl will start causing damage to the body. this is why diabetes get things like diabetic ulcers and extremity numbness. it prevents ulcers from healing and destroys the nerves in the hands and feet. the body likes maintaining homeostasis and will try to lower those blood glucose levels with insulin. over time if this system is overburdened, the cells will have decreased response to insulin leading to poorly controlled blood sugar levels which is what diabetes is. evolutionarily speaking, the closest thing ancient humans had to straight glucose was fruits, which have fiber which slows the uptake of glucose. the most natural diet includes plenty of vegetables, nuts, fish, seafood, and some fruits. this is the diet humans evolved with over tens of thousands of years before the introduction of agriculture and is the diet the human body is most adapted to.   > slowing metabolism = less energy slowing metabolism also means the slowing of bodily processes and thus aging. in cancer, this starves cancerous cells and slows their mitosis. the more cells your body has, and the faster they reproduce, the greater the chance for cancerous mutations to arise over time. it's a numbers game. decreasing the burden and load on organs is great for longevity. it's like running and engine on idle versus at redline. the engine slowly moving along at idle is going to have less wear and tear than an overstressed engine running at redline all the time.
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