Hi ~gonwtwindo
This article imaybe relevant , to much low carbing can affect the thyroid (T3 hormones) and the lipid profile .
"Why Do Extreme Low-Carb Diets Backfire for Some People?
Dr. Jaminet believes that a large part of the confusion about this topic is related to the fact that most of the data in the medical literature relates to high carb diets, and how high carb diets cause high lipoproteins. Generally speaking, if you're on a high-carb diet and suddenly reduce your carb intake, your blood cholesterol profile will improve. Typically, triglyceride levels will be sharply reduced.
"But then as you start going below 25 percent carbs or so, then your body has to adapt to a scarcity of glucose. It does that with some hormonal changes that can also impact blood lipids," Dr. Jaminet explains.
"So, for instance, when you're eating very low-carb, one thing your body does to conserve glucose and protein is lower the level of T3 and thyroid hormones. So, that reduces glucose utilization by cells. That's good. It's conserving the glucose so that it can be used for the most important functions, but now you have lower thyroid hormone levels. Thyroid hormone also activates the fat metabolism. It activates LDL receptors, and some other things.
It's possible, if you're eating too low-carb, to get elevations of blood lipids. I have to say this is an issue we're still exploring. We did a lot of work on my blog this year trying to track down why some low-carb dieters have high blood lipids. Usually it's either a thyroid hormone response to too little glucose in the diet, or various micronutrient deficiencies. Copper deficiency is a common one – selenium, magnesium can affect it.
It's important to be well-nourished. If people eat very low carb and let themselves get malnourished, then they are very likely to have some kind of problems with their lipid profile."
http://articles.mercola.com/sites/a...20107_DNL_art_1
Goodluck
somebloke