Standard American meals, rich in processed junk and meat and dairy, lead to exaggerated spikes in sugar and fat in the blood. This generates free radicals, and the oxidative stress triggers a biochemical cascade throughout our circulation, damaging proteins in our body, inducing inflammation, crippling our artery function, thickening our blood, and causing a fight-or-flight nerve response. This all happens within just one, two, three, four hours after eating a meal. Worried about inflammation within your body? Well, one lousy breakfast could double your C-reactive protein levels before it’s even lunchtime.
Repeat that three times a day, and you can set yourself up for heart disease—though you may not even be aware how bad off you are, because your doctor is measuring your blood sugar and fat levels in a fasting state, typically drawing your blood before you’ve eaten. But, what happens after a meal may be a stronger predictor of heart attacks and strokes—which makes sense, since this is where most of us live our lives, in a fed state.
And, not just in diabetics. If you follow nondiabetic women with heart disease, but normal fasting blood sugar, how high their blood sugar spikes after chugging some sugar water appears to determine how fast their arteries continue to clog up. Perhaps, because the higher the blood sugar spike, the more free radicals are produced.
So, what are some dietary strategies to improve the situation? Thankfully, “[i]mprovements in diet exert profound and immediate favorable changes.” What kind of improvements? Specifically, a diet high in antioxidant, anti-inflammatory whole plant foods. “[m]inimally processed, high-fiber plant-based foods such as vegetables and fruits, whole grains, [beans], and nuts, will markedly blunt the after-meal increase[s]” in sugar, fat, and inflammation.
If you combine some chicken with white rice—steamed skinless chicken breast—you get a greater insulin spike than just the white rice alone. So, adding the low-carb plant food made things better, but adding the low-carb animal food made things worse. Same thing with adding chicken breast to mashed potatoes—a higher insulin spike with the added animal protein. Same thing with animal fat; add some butter to a meal, and get a dramatically higher insulin spike.
If you add butter and cheese to white bread, white potatoes, white spaghetti, or white rice, you can sometimes even double the insulin. Whereas, if you add a half an avocado to a meal, instead of worsening, the insulin response improves, as it does with the main whole plant food source of fat: nuts.
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