Anyone else notice that maintaining their summer vitamin d levels year round results in easy maintenance of leaner "summer" bodyweight during the fall and winter? I've noticed this and am not sure if it's because of keeping my d levels at summer levels during fall and winter from d supplementation alone or because of combo of supplementation and indoor tanning during the winter. UV light increases metabolism and Ray Peat wrote some interesting things about using bright lights on the skin to alleviate the stress of winter darkness.
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For sure. I keep my D around 80-90 ng/ml year-round. |
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I've been considering that this isn't normal or natural. That Wiley might be correct that we should try to imitate life's natural cycles as much as is possible. I'm considering an experiment where I go low carb, lower calories all winter and really lean out and then focus on bulking over the summer. Get lots of sun and let myself gain 10lbs of fat and see if the following winter life isn't easier, and if I am less prone to SAD. As I understand things vitamin D is stored in body fat so perhaps.... |
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According to some experts, you should be at your leanest mid-winter! http://jackkruse.com/so-you-completed-the-leptin-rx-what-is-next/ "This is also precisely why I am leanest around December 21st,. At this time the light cycle its lowest and the temperature is usually low so exercising in this window is the easiest way I know to shred body fat and gain muscle mass quickly. I went from 44% BF to 19% BF in one year doing this. I would also like to point out something here that you might not have ever thought about to show you how incongruent humans really are with this timing issue. When do we see ads in the newspapers for weight loss aids? The answer is around New Years Day in January. Why? Because humans tend to get fat in winter so sports stores place ads when they are most likely to gain revenue. They are in tune to our behavior. Now change your mind set and think about wild animals you have seen on the Discovery channel. When are they leanest during the year? The answer is in winter, when food is scarce and they have to really forage for food in subzero temperatures. Most humans live a life that is biologically incongruent to how our biology is designed to live. Once I thought about the leptin receptor biology and how I could reset it using circadian rhythms I went back to my veterinarian friends and to the exercise literature (Frank Booth) to figure how to live the rest of my life optimally and regain my optimal body form and metabolism. This is precisely how I live daily today. Feel free to call my operating room team and ask them when was the last time they ever saw me operating between 2-5 PM? For the last 5 years the answer is never." |
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