Women and OA: More Milk, Less Progression
Written by Editor   
Thursday, June 05, 2014 05:05 AM

An estimated 27 million Americans currently have osteoarthritis, and further dramatic increases are expected in the coming years as the population ages.  "Therefore, it is of great importance to identify modifiable risk factors for [osteoarthritis] progression."

Milk plays an important role in the maintenance of bone health, and one study of a supplement containing milk micronutrients and another cross-sectional study of diet and osteoarthritis suggested benefits for milk.

Women who drank milk regularly had less progression of knee osteoarthritis (OA), data from the Osteoarthritis Initiative showed.

Compared with women who never drank milk, whose decrease in joint space width was 0.38 mm over 4 years, those who drank up to six glasses per week had decreases of 0.29 mm, and those whose weekly consumption was seven glasses or more had decreases of 0.26 mm.  This finding was observed only in women; no dose-response relationship was seen for men.

"Knee [osteoarthritis] progression has been thought to involve multiple mechanisms besides cartilage loss, including changes in bone composition and shape, as well as proprioception, which might be subject to the influences of macro- and micronutrients in the diet,"

For women, an increase of 10 glasses of milk each week over the 4-year study period was associated with a change in joint space width of 0.06 the authors observed.

Different results were seen for other types of dairy products. For cheese, consumption of seven or more servings per week was associated with greater joint space width decrease when compared with no cheese consumption while eating yogurt showed no effect.

Source:  http://www.medpagetoday.com/Rheumatology/Arthritis/46031