I don't think what we are doing is actually "calorie restriction". I HAVE been on a calorie-restricted diet for a long period of time, and got a multitude of side-effects. Including being cold all the time and dry skin. I don't recall about libido though (I was also going to school and working and not getting much sleep, so libido was not exactly high on the list).
While on Fast-5 I do actually eat less than I do when eating all day, but I don't have the symptoms I had on a calorie-restricted diet. Dunno why exactly that is, but it's different. For one thing, people who do CR say that hunger is always an issue, and it's pretty clear on this list that hunger is just not an issue for the majority of people. So the hormonal changes are quite different.
Another thing is: the mice on CR don't have free access to food. So they can't balance what their bodies need. On Fast-5, one thing I think that happens is that your body says "I need more protein" or "I need more fat" or "I need more fatty fish!" and you just EAT it, without thinking about it much. When you put mice on an alternate-day eating plan, or any free-eating plan, they tend to balance out what they want to eat. Like, they'll eat more of this seed and less of that. But even then, the diet they are given in the lab doesn't give them many choices, so if they were short on one nutrient, they can't make it up. I think this causes problems in those mice. The lab-mouse diet is very artificial to begin with ... "mouse chow", no kidding! OK, it's been renamed, looks like:
So none of these diets actually takes "free will" into account. Any wild animal, and most human children, given free reign to choose foods, chooses what is good for them. Even to the point that monkeys will eat a specific plant only when they get a certain parasite that that plant kills.
The beauty of Fast-5 ... which is ONLY found in the intermittent-eating plans with a full range of foods ... is that it allows for free will. It allows the brain to choose what it really needs. And maybe what it needs for libido is some fatty acid that is only found in a few foods. Or fresh chlorophyll from greens.
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Another thing is this: mice, and insects, tend to breed when there is a lot of food available. So the more food, the more mice. Makes sense! I'm not sure it works that way for human beings. Human beings tend to breed when they are under stress (hence the term, "wartime babies").
On Wed, Dec 22, 2010 at 2:46 PM, tamaratornado <tamaratornado@yahoo.com> wrote:
"Among people now practicing calorie restriction, he says side effects include reduced libido because calorie restriction reduces testosterone levels. They also tend to become cold more quickly because their thermal regulation changes as their metabolism slows and their core body temperature drops."
Anybody notice these side effects? Reduced libido???
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