Skeleton Pirate

Skeleton Pirate
Artist: LindaB


Have you experienced, or read about, negative, and even dangerous, side effects from Fosamax (alendronate), Boniva (ibandronate), Actonel (risedronate), and other bisphosphonates prescribed for osteoporosis? If you have, then rest assured there is a safe, effective treatment for this condition. Strontium, primarily in the form of strontium citrate, is taken orally once a day.

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Monday, September 26, 2016

Doctor's Best Has Been Sold to a Chinese Company

On June 15, 2016, North Castle Partners and its co-investors announced the sale of Doctor's Best, Inc. ("Doctor's Best" or "DRB"), a leading marketer and distributor of branded nutritional supplements (e.g., Doctor's Best Strontium Bone Maker brand of strontium citrate), to Xiamen Kingdomway Group Co. (SHE: 002626). For North Castle Partners, the exit concludes another successful partnership in the nutritional supplements industry. The terms of the transaction were not disclosed.

About North Castle Partners
North Castle Partners is a private equity firm focused on investments in product and service businesses that promote healthy, active, and sustainable living. North Castle is a hands-on, value-added investor in high-growth, middle market companies in the (i) beauty and personal care, (ii) consumer health, (iii) fitness, recreation and sports, (iv) home and leisure and (v) nutrition sectors, among others. North Castle's current portfolio includes such well-known brands as Curves International/Jenny Craig, Barry's Bootcamp, Palladio Beauty Group, Mineral Fusion, Red Door Spas, Sprout Organics, SmartyPants, Brooklyn Boulders, Ibex Outdoor Clothing, and Turnbridge. North Castle is headquartered in Greenwich, CT. For more information, visit

About Doctor's Best, Inc.
Irvine, CA-based Doctor's Best, Inc. manufactures and distributes dietary supplements.  Doctor's Best is known for a broad line of products based on sound research and manufactured with quality ingredients. For more information, visit

About Xiamen Kingdomway Group Co.
Xiamen Kingdomway Group Company (KDW) was founded in 1997 as a key High-tech Enterprise of the National Torch Project and was publicly listed on the Shenzhen Stock Exchange in 2011 under the ticker 002626. With over 1,500 employees, KDW is one of the first high-tech enterprises in Xiamen, China.  KDW is a fully integrated global nutrition company. KDW currently provides Coenzyme Q10, Microalgea DHA, ARA, Vitamin A, Vitamin D3 and Beta-Carotene, with many more products in a well-established research and development process. KDW has retail stores in Singapore, sales outlets throughout Southeast Asia, a joint venture in Japan and wholly owned subsidiaries in the United States, including Vit-Best Nutrition, a contract manufacturer of nutritional supplements and, with this most recent acquisition, Doctor's Best. 


Anonymous said...

I just looked and the doctors best strontium product has been discontinued. Does the bone lady have any suggestions for reputable alternatives?

BoneLady said...

To: Anonymous of 10/4/2016,

Doctor's Best has not been discontinued, but the smaller sizes are unavailable. The online suppliers, and, are carrying only the 360-capsule size and are currently out of stock. Amazon will have the 360-cap size in stock on October 12, 2016.

Two brands I know are good are Advanced Ortho Molecular Research, AOR, Advanced Series, Strontium Support II and Pure Encapsulations Strontium (citrate). Swanson Stontium Citrate, and Vitacost Strontium may also be worth checking out.

Marilyn Pinkerton said...

What about Life Extensions Strontium, do you like that one??

BoneLady said...

Dear Marilyn Pinkerton,

Life Extension has a good reputation in integrative health. Not only does the company provide supplements, but it also funds research, has published a textbook, publishes a magazine, and offers blood tests. LifeExtension Super K with Advanced K2 complex is the #1 best seller in vitamin K supplements at I don’t take it but know people who do. LifeExtension Strontium Caps come in 250-mg capsules, with a serving size of three capsules (total of 750 mg strontium). I don’t recall having heard from anyone on my blog or at NOF claiming to take this strontium product. It’s probably a good product. My only hesitation is the dosage and the number of capsules per dose. The more common dosage is 680 mg strontium from two capsules of 340 mg each.

Anonymous said...

Just found a new product on Amazon, Happy Healthy Smart STRONTIUM, it can supply 680mg per day.

I don't see many reviews for this one, not sure if it's the same quality as Doctor's best.

Just FYI.

BoneLady said...

BoneLady said...

To Anonymous of 10/30/2016,

I had not heard of Happy Healthy Smart Strontium before now. I know nothing about the company. There are only 16 customer reviews for HHS Strontium on as of 11/15/2016, and most of the reviewers have only been using the product a few days or a few months. One reviewer had been using it for a little over a year. Fifteen reviews were positive. The one negative review simply said, "Not what I needed." That brand is not available at,the online supplier I use.

I would not buy a little known brand for myself. There are other good brands of strontium. Check out Advanced Ortho Molecular Research (AOR)Strontium Support II, Pure Encapsulations Strontium (citrate), Swanson Stontium Citrate, Vitacost Strontium, and Life Extensions Strontium. AOR is the one I recently purchased for myself.

November 15, 2016 at 10:14 AM

Anonymous said...

Thank you so much for your blog. I have purchased Dr's Best for many years. I was shocked when I went to Amazon and only found it for a very high price. I read that the manufacturer had discontinued it. I knew the BoneLady would know so that you so much for the info and listing alternatives for us. Going to check them out.

Anonymous said...

Unfortunately, the 360 count of Doctor's Best Strontium has also been discontinued as of Sept. 2016 according to their website. ­čśí

BoneLady said...

To Anonymous of 12/19/2016:

You're right. According to the website,, Doctor's Best discontinued Doctor's Best Strontium Bonemaker, 340 mg, 60 veggie caps and 120 veggie caps, as of July 2016 and then discontinued the 360-veggie cap size as of September 2016. Some distributors may have stock for a while. Two marketplace vendors on are currently selling Strontium Bonemaker at exorbitant prices. Wholesale Cheapest wants $49.60 plus $5.39 shipping for a 60-count bottle. Earth Nature wants $99.99 for a 120-count bottle, with free shipping and fulfillment by Amazon. Doctor's Best does not give an explanation on its website about why Bonemaker was discontinued.

BoneLady said...

To: Anonymous of 11/17/2016,

You're welcome. I enjoy writing my blog and interacting with my readers. So, thank you for reading and responding. I want it to be a two-way street because I learn from my readers. I, too, had purchased Doctor's Best Strontium Bone Maker for many years. Yes, the current prices for it at Amazon are outrageous. Doctor's Best stopped making the 60- and 120-veggie caps as of July 2016 and the 360-cap size as of September 2016, although some vendors still have stock. I bought AOR Strontium Support II and am half way through my first bottle. Pure Encapsulations Strontium (citrate), Swanson Stontium Citrate, Vitacost Strontium, and Life Extension Strontium Caps are also worth checking out.

Wandering Skeleton

Wandering Skeleton
Artist: Joel Hoekstra

Osteoporotic Bone

Osteoporotic Bone

How Strontium Builds Bones

Strontium is a mineral that tends to accumulate in bone. Studies have shown that oral doses of strontium are a safe and effective way to prevent and reverse osteoporosis. Doses of 680 mg per day appear to be optimal. See my "For More Information About Strontium" links section.

Osteoporosis is caused by changes in bone production. In healthy young bones there is a constant cycle of new bone growth and bone removal. With age, more bone is removed and less new bone is produced. The bones become less dense and thus more fragile.

Scientists believe that strontium works in two ways. It may stimulate the replication of pre-osteoblasts, leading to an increase in osteoblasts (cells that build bone). Strontium also directly inhibits the activity of osteoclasts (cells that break down bone). The result is stronger bones.

When taking strontium, be sure to take 1200 mg calcium, 1000 IU vitamin D3, and 500 mg magnesium daily. It is best to take strontium late at night on an empty stomach. Calcium and strontium may compete with each other for absorption if taken together.