going primal and boosting my thyroid

I'm now about three month into following a primal way of eating, learning mostly from Marks Daily Apple.  I was already eating low carb, so the big change is that I have given up all grains, legumes and sugar (things I previously at in small amounts) and am trying to avoid all vegetable oils except olive and coconut oils.

My thyroid is fine according to my doctor, but my TSH has been creeping up and two of my sisters are on thyroid replacement.  I realized I was cold all the time and decided to  try supplements to help my thyroid.  For many years I took no vitamins or minerals at all, figuring I ate a very healthy diet.  I'm not entirely comfortable with the "you need these vitamins to clear the toxins from your body" line of argument, but I did see a difference from supplementing vitamin D on days when I wasn't in the sun, so I will try the whole package.

It made sense to me that I might be deficient in iodine because for years I almost never added salt to my food and I eat a lot of seafood only a few weeks a year.  So I am supplementing with iodine and the necessary companion supplements.  I currently take:

• 2 drops Lugols 2% (increasing my iodine very slowly)
• 2 Brazil nuts for selenium
• 1000 mg. vitamin C in ascorbate form
• 200 mg. Magnesium in Bis-Glycinate form
• 100 mg. Riboflavin
• 500 mg. Niacin (as inositol hexanicotinate)
• 5000 IU vitamin D3
• Ashwagandha (reduces the effect of stress on my blood glucose)
• 1/2 teasp celtic or himalayan natural salt

and am adding

• 1100 mcg. vitamin K2
• milk thistle

I'm particularly curious whether my LDL cholesterol will go down--apparently high cholesterol can result from low thyroid.  Last year I tried garlic and oat bran, and neither helped.  My HDL and Triglycerides are excellent so I don't take any medication.  But my LDL did go up when I briefly took Zoloft, which is known to reduce one of the thyroid hormones.

It was late last fall before I got to a dose of Metformin that I thought did anything for me, and my weight gain stopped at that point.  So I can't say one thing made the difference, but I am down two and a half pants sizes since the beginning of December, without limiting how much I eat.
I am beginning to realize that I do have more energy and feel better.  And it is lovely not to be hungry.

It is so nice to have those visible results because by conventional wisdom it is a strange way of eating.  My usual day goes something like this:

• Breakfast: smoothie with one cup yogurt made from raw milk, 1 tblsp MCT oil, 2 local eggs (raw yolks, whites cooked in coconut oil), 1 banana, 1 kale leaf, and ice cubes
• Lunch: salad with meat and cheese on it or leftovers
• Dinner: meat and vegetables
• Bedtime snack: currently local strawberries with cream or custard