I have been having knee joint aches for awhile. Three weeks ago, I had a craving for cashews and ate about 8 oz a day for 3 days. I noticed my knee aches were gone and all my joints felt younger and lubricated. I searched and found that along with cardio benefits there is also a benefit to joints. I now eat a handful of roasted cashews every morning and I can do squats without knee aches.
I have also noticed a nerve calming effect.