Yeah, a fifteen-fret uke will have two octaves. The lowest note is middle C. Then the E string (open) is the E above middle C, the A (also open) is the A above middle C, then fifteen frets down you have the second C above middle C. That's two octaves.
Yes, peanuts and peanut butter can aggravate arthritis. I was a peanut butter eater all my life, I am now 58.
But yes, peanuts are 100% gluten-free by themselves! Many people with a gluten intolerance often have other intolerances as well. If you have always felt bad after eating peanuts or peanut butter, it is possible that you canât handle peanuts either. Also, peanut butter can often be very high in mold.