This fish oil supplement has the best shelf life of many brands I have tried. The other brands I have tried, including several molecularly distilled brands which also use tocepherols as preservatives, have smelled rancid. Life Extension gets something right in their processing that even some other highly touted brands seem to miss. Thanks for the chance to sing their praises.

This formulation of Vitamin K2 is exactly what I needed to integrate with my other supplements of Vitamin D and Calcium and the rest of my heart healthy diet. I am in Oklahoma City and there are no local distributors for this or any other Vitamin K2 supplents (as far as I can find), so I am thrilled that iHerb carries this item. Thanks!

According to several cutting edge research sources, including those who require stringent scientific analysis of data, this K2 supplement may be a key factor in preventing and reversing both heart disease and osteoporosis. Taken in combination a proper balance with Vitamin D3, calcium, magnesium, and omega 2 fatty acids, K2 may be one of the most important, and as yet under-reported substances which works with the aforementioned other nutrients to help ensure, among other things, that the calcium goes to the bones, not the arteries. Do your own research and discover the evidence from Japan and other nations that focuses on K2 as a measurable factor in avoiding both of these major diseases. Thank goodness the folks at Life Extension choose to market this product, which is my undrstanding is produced in a high quality environment and at a modest cost. Readers, note that I don't work for these guys; I am just a middle aged heart patient who has done his own extensive Internet homework (including the good advice from Dr. Joel Fuhrman as well as from other sources) and who has concluded that this particular product rendering of a key health nutrient is a wise choice. I may sound like a marketing junkie in this review, but K2 has, in combination with the aforementioned nutrients and along with a nutrient dense diet (and subsequent weight loss), had a positive impact on the standard measures the health community relies on to judge the status, progress, or regress of a heart patient. My "numbers" are great these days, every time I see either my family practioner or my cardiologist. Thanks also to iHerb for carrying this product and for their easy ordering procedures (and fast delivery to my remote part of the country). Thanks also to iHerb for the invitation to review this product. Be well, all.