Читать книгу Super Human: The Bulletproof Plan to Age Backward and Maybe Even Live Forever онлайн

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So I turned to a raw vegan diet, and I went all in. I bought sprouting trays and the world’s best blender and spent my days eating bowl after bowl of salad and entire blenders full of green smoothies trying to consume an adequate number of calories. It worked … for a little while. I got down to about 185 pounds—too low for a six-four guy—and I felt a burst of energy that also made me feel flighty and ungrounded. I convinced myself that the increase in pain and stiffness that came with this was just my body “detoxing.” But my friends said I looked gaunt, and pretty soon I wasn’t feeling so great. My teeth got sensitive and even started to break, and I felt cold all the time. It was pretty clear that I was suffering from malnutrition, despite knowing a ton about nutrition and spending two hours a day preparing food.

Later I learned about what I call the “vegan trap.” When you switch from a diet containing animal fats to the mostly omega-6 polyunsaturated fats found in plants, you set yourself up for failure. Vegetable oils reduce your thyroid function by preventing thyroid hormone from binding to receptors.¹⁰ At first your thyroid hormones will temporarily increase to compensate for the lower energy, and you feel good. That’s what led to my ungrounded energy and initial weight loss. But if you continue to give your body the wrong building blocks, your health will suffer. Because your cells don’t have the right building blocks to make energy efficiently, your metabolism eventually slows down. That slow metabolism doesn’t just make you gain weight more easily; it slows down your brain, your energy, and everything you do.