Avocado/soybean unsaponifiables (ASU) for osteoarthritis

Marion Hauser Curcumin and osteoarthritisMarion Hauser, MS, RD

Plant oils are a favorite of the makers of natural dye-free, chemical free soaps. Among popular oils used to make soap are those of the avocado and soy plant. The process of making soap is called saponification. The oily, waxy by product that is not soluble enough to make soap is called the unsaponifiables. In the 1950s Dr. Henri Thiers began research that suggested that this by product, may help patients with osteoarthritis.

Avocado-soybean Unsaponifiables are the combined oil extracts of these plants. You can find Avocado-soybean Unsaponifiables (ASU) as a supplement, you can also find these oils in the natural food aisle. According to most sources the proper mixture is one-third avocado oil and two-thirds soybean oil. Gelcap daily supplements are suggested at 300mg per day.

Almost five decades after Dr. Thiers began his work, doctors in France writing in the journal Arthritis and rheumatism in 1998, published a paper with the incredibly descriptive title:

Symptomatic efficacy of avocado/soybean unsaponifiables in the treatment of osteoarthritis of the knee and hip:

A prospective, randomized, double-blind, placebo-controlled, multicenter clinical trial with a six-month treatment period and a two-month follow up demonstrating a persistent effect.

This study has it all, placebo, double-blind (neither the patient or health care provider who was getting the Avocado-soybean Unsaponifiables and who was getting the placebo), short-term follow up, longer follow up. As good a study as you would want.

The French team wanted to see how effective and safe avocado/soybean unsaponifiables were the treatment of patients with symptomatic knee or hip osteoarthritis  as well as the potential residual effects of ASU after stopping treatment.

So they found patients with regular, painful, primary osteoarthritis of the knee (n = 114) or hip (n = 50) to test. The first thing they did was a 15-day washout period for nonsteroidal antiinflammatory drugs (NSAIDs) preceded the study. But once the study started if NSAIDs were needed in either group, those patients could take them.

Basically, Avocado-soybean Unsaponifiables provided some good benefit.

Avocado-soybean Unsaponifiables may provide an alternative to NSAIDs

Now this study followed a 1997 study that also suggested Avocado-soybean Unsaponifiables may provide an alternative to NSAIDs. This study also came from French researchers interested in plant oil extracts. Looking at patients with either knee or hip osteoarthritis using NSAIDs to manage their pain. What these doctors wanted to do was to see if they could get rid of the NSAIDs with Avocado-soybean Unsaponifiables.

Basically, again Avocado-soybean Unsaponifiables provided some good benefit and helped some reduce the need for NSAIDs.

A 2003 study from Belgium is seen as one of the landmarks in Avocado-soybean Unsaponifiables. In this laboratory study, doctors looked to see how Avocado-soybean Unsaponifiables benefited patients with osteoarthritis. What they found was that the extracts promoted the growth of cartilage while preventing cartilage breakdown.(3)

Avocado-soybean Unsaponifiables may prove to be an effective treatment option for symptomatic osteoarthritis

In 2015, in the medical journal Cartilage, doctors lead by Blaine A. Christiansen, Ph.D., BS, MS for of the University of California at Davis Health summarized their research with this closing statement:

“Osteoarthritis inflicts pain and physical limitation on millions of people. Improving joint function and patient activity is a central public health concern to improve quality and length of life. The aim is not only to treat pain but also to prevent the onset of disease. There is no cure for osteoarthritis, and even symptomatic treatment options are scarce, dominated by pain management and surgical intervention. Avocado-soybean Unsaponifiables may prove to be an effective treatment option for symptomatic osteoarthritis, as they have been shown to possess chondroprotective, anabolic, and anticatabolic properties, as well as anti-inflammatory properties. At the clinical level, ASUs reduce pain and stiffness while improving joint function. Importantly, ASUs are a natural, slow-acting agent that do not merely address acute pain but actively prevent progression of osteoarthritis symptoms.”(4)

The amazing healing power of food is seen throughout my articles on this site. Here are a few of them:

References for this article

1 Maheu E, Mazières B, Valat JP, Loyau G, Loët XL, Bourgeois P, Grouin JM, Rozenberg S. Symptomatic efficacy of avocado/soybean unsaponifiables in the treatment of osteoarthritis of the knee and hip: A prospective, randomized, double‐blind, placebo‐controlled, multicenter clinical trial with a six‐month treatment period and a two‐month followup demonstrating a persistent effect. Arthritis & Rheumatology. 1998 Jan 1;41(1):81-91.

2 Blotman F, Maheu E, Wulwik A, Caspard H, Lopez A. Efficacy and safety of avocado/soybean unsaponifiables in the treatment of symptomatic osteoarthritis of the knee and hip. A prospective, multicenter, three-month, randomized, double-blind, placebo-controlled trial. Revue du rhumatisme (English ed.). 1997 Dec;64(12):825-34.

3 Henrotin YE, Sanchez C, Deberg MA, Piccardi N, Guillou GB, Msika P, Reginster JY. Avocado/soybean unsaponifiables increase aggrecan synthesis and reduce catabolic and proinflammatory mediator production by human osteoarthritic chondrocytes. The Journal of rheumatology. 2003 Aug 1;30(8):1825-34.

4 Christiansen BA, Bhatti S, Goudarzi R, Emami S. Management of osteoarthritis with avocado/soybean unsaponifiables. Cartilage. 2015 Jan;6(1):30-44.

 

 

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