Life Extension Super K with Advanced K2 Complex Softgels, 90-Count


Contains no milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, wheat, yeast, gluten, corn, or rice. Contains no sugar, and no artificial sweeteners, flavors, colors, or preservatives

$ 14.51

Comments

  1. 64 of 68 people found the following review helpful
    3.0 out of 5 stars
    Natto derived, February 25, 2011
    By 
    Suz (Portland, OR United States) –

    Amazon Verified Purchase(What’s this?)

    Heads up for anyone who is soy or estrogen sensitive.
    I purchased this brand as it stated “contains No soybeans” and I am estrogen sensitive. After taking it for a little over a week I noticed continually worsening soreness and pain in my breasts. I contacted the manufacturer and was advised that one of the K2 ingredients did come from Natto (which comes from fermented soybeans) and would be a phytoestrogen.
    I am sure the product is great for anyone that is not estrogen sensitive. I did like the small size of the capsule. They were also very nice on the phone for advice. I did not buy this direct from their company and so cannot return it for a refund.

    Help other customers find the most helpful reviews 

    Was this review helpful to you? Yes
    No

  2. Marilyn D. Kagan "Jewelry designer" says
    32 of 33 people found the following review helpful
    5.0 out of 5 stars
    Saving your bones, April 9, 2010
    By 
    Marilyn D. Kagan “Jewelry designer” (Providence, RI USA) –
    (REAL NAME)
      

    Amazon Verified Purchase(What’s this?)

    Have you started on the road to osteoporosis? Do you have trouble with taking calcium? This is a product that has no calcium, but if one takes it for a year, and has a Dexa scan to compare, will strengthen your bones without the dangers that calcium has for you personally. A cousin of mine took this for a year and her Dexa shows that her bones have strengthened. I have calcium absorption problems, so I ran to the computer and ordered these capsules. It’s only a few weeks, so I’ll have to order a few more jars, and see what happens after a year, but from what I’ve read, it should help a lot. The capsules are small, and taste sweet. That alone is an advantage!

    Help other customers find the most helpful reviews 

    Was this review helpful to you? Yes
    No

  3. 25 of 25 people found the following review helpful
    4.0 out of 5 stars
    contains K2 as both MK-4 and MK-7, August 5, 2012
    By 
    slm

    This review is from: Life Extension Super K with Advanced K2 Complex Softgels, 90-Count (Health and Beauty)

    This supplement contains 1000 mcg K1, 1000 mcg K2 as MK-4, and 100 mcg K2 as MK-7, for a total of 2100 mcg or 2625% of the RDA. Some preliminary studies suggest that K2/MK-4 and K2/MK-7 promote bone strength and may be helpful in the treatment of osteoporosis. This is one of the few supplements that contains MK-4, which is used as an osteoporosis treatment in Japan, although at higher doses than contained here (~45 mg/day). MK-7 is made from fermented soybeans (natto), which may be an issue for some people. Vitamin K interacts with blood thinning medications and the product label also warns that it contains tree nuts (coconuts). The serum half-life of MK-7 is several days whereas the half-life of MK-4 is only several hours, so optimal dosing of the latter may involve several doses a day (in which case one might want to consider Thorne Research Vitamin K2 liquid).

    Help other customers find the most helpful reviews 

    Was this review helpful to you? Yes
    No

Leave a Comment

*