perhaps you missed this part, or my previous posts on the topic; LEF has a D, K, Iodine combo product... all are extremely important.
>>"It is Actually Difficult to Get Toxic
The best way to optimize your vitamin D level is through sun exposure or a safe tanning bed as that virtually eliminates any risk of overdose. As a very general guide, you need to expose about 40 percent of your entire body to the sun for approximately 20 minutes between the hours of 10 am and 2 pm, when the sun is at its zenith. There appears to be no risk of vitamin D toxicity from ultraviolet B exposure.
If you’re using an oral supplement, recent studies suggest adults need about 8,000 IU’s of oral vitamin D3 per day in order to get serum levels above 40 ng/ml. However, remember that if you take oral vitamin D, you also need to boost your vitamin K2, either through your food choices or a supplement. Vitamin K2 deficiency is actually what produces the symptoms of vitamin D toxicity, which includes inappropriate calcification that can lead to hardening of your arteries. In general, however, taking vitamin D3 is very safe. Even the conservative Institute of Medicine has concluded that taking up to 10,000 IU per day poses no risk for adverse effects.
The ideal or optimal ratio between vitamin D and vitamin K2 has yet to be elucidated, so there’s little to go on in this regard. Dr. Kate Rheaume-Bleue, author of Vitamin K2 and the Calcium Paradox: How a Little Known Vitamin Could Save Your Life, suggests 150-200 micrograms of K2 per day will meet the vitamin K2 needs of the "average" healthy person, if you’re not taking a vitamin D supplement. Keep in mind that some of that can come from your diet, such as fermented vegetables. If you take a vitamin D supplement, you may need to increase your vitamin K2 some more."<<
Both K and D are REQUIRED for metabolism of a host of proteins, in the form of enzymes, lypoproteins/hormones (you know those things that regulate metabolism and are manufactured in the glands such as the thyroid, parathyroid, etc?), carbs, mineral absorption and utilization, etc. etc.
If you are gluten sensitive, as I was, I challenge you to take a good, K, or get K metabolising probiotics in your diet and once you feel *it* give a bit of gluten a try. I would be willing to bet that you have a better tolerance. Interesting that gluten free diets are usually much higher in K... K comes up over and over again on Celiac forums too... however people tend to shy away from K because it is fat soluble without knowing that the body does not store it well as with A, D and E; some forms of K used by the body have a half life of a few hours, others mere days.
It seems someone must repeat themselves a zillion times before things start to sink in.
Most people seem to have absorption issues these days of one sort or another caused by a gut that is not micro-organism balanced among other things... you know, those good bacteria and fungi that convert plant based nutrition into forms that can be used by animals. Plant K1 is not the same as what your body primarily utilizes... and K, like D and other *vitamins* and *minerals* comes in many stages and forms that must be converted to usable forms or eliminated due to their harmful nature found in *toxic* forms.
Some people **MUST** eat animal products to get proper nutrition because they do not convert plant nutrition properly, and/or in adequate amounts and can suffer malnutrition in spite of eating a sound vegetarian/vegan diet. Still, others *REQUIRE* supplementation being unable to absorb AND/OR convert food sources due to mutated genes caused by changes in the environment - i.e. environmental stress caused by the polluted environment.
It is also important to keep in mind that an overdose of one nutrient can, and does cause the same diseases a deficiency of the same nutrient, and can also mask deficiencies in other nutrients as the body has an amazing ability to *substitute* - to a point. for instance B6 and B12 can mask deficiencies of each other... etc.
EVERYTHING works together; understand this as best you can... do not permit yourself to become supplement centric.