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Fatigue, mental illness and diet

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Based on years of personal experience, I’m increasingly convinced that some forms of fatigue and mental illness, particularly things like depression, anxiety and insomnia, are caused in large part by not getting enough animal products in your diet — especially Vit B-12 and saturated fat.  B-12 is directly involved with many aspects of brain and nervous system function, and saturated fats are precursors for a number of hormones that affect mood and energy.

One thing to watch for on the fatigue side is that after a while, Paleo can cause what used to be “subclinical” hypothyroidism to come to the surface. If you’re eating right, yet still tired all the time, even when you get plenty of sleep, I would highly recommend having your thyroid levels checked. You might also look at supplementing with a little iodine, particularly if you’ve stopped using iodized salt.

The best thyroid tests are Free-T3, Free-T4 and ultra-sensitive TSH. See:
http://johndommissemd.com/page/368509
for some info along those lines. You might also try measuring your basal body temperature before you get out of bed in the morning. If it’s regularly a degree or more below 98.6, that’s suggestive of hypothyroidism.

There are, of course, a number of other issues that can also be at play: everything from sleep apnea (snoring or a morning sore throat are common symptoms) to nutrient deficiencies. Magnesium is by far the most common nutritional deficiency, and correcting it often helps hugely, partly because it allows you to more fully relax, both mentally and physically. Eliminating gluten can help, too, by allowing leaky gut to heal, which then helps you absorb nutrients better while also reducing food allergies.


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