JK, I have posted the link to ConsumerLab.com before on this site. It is a consumer watchdog group for supplements. They test them to make sure they are what they say they are, at the strength they say they are at, and that they will open up in your body (some pills go straight through you). They found lead in AlgaeCal as well as it only have 87% of the stated amount of magnesium. There are many medical journal submissions you can read there. It isn't free - but it definitely worth it for anybody who questions the purity of the supplements they are taking. I've been a member for a very long time. I have NO immune system and I also have to be very careful what I take.

Also, doctors have HUGE case loads. It is impossible for them to keep up with all their patients' conditions as well as the latest in vitamins, minerals, other supplements, and all diseases, etc. It is hard to find a doctor that is up on everything. I only have one doctor (out of ten) that keeps up. My PCP learned to stop disputing what I said because I don't say something without a ton of research. She tried to tell me avocado was a worthless vegetable!!! That was our last dispute. Now she writes down what I say! Take the K2 article with you and share it with your doctor. Some doctors don't even know about vitamin K2 yet. It's important to know you can't get hypervitaminosis from K2. But there may be other issues of concern. Have them review it so you can be sure it is okay for you to take. I have a problem with my red blood cells, but I was cleared to take it.