I haven't studied this topic in depth, but I found some papers that lend credence to the idea that getting sufficient magnesium and maintaining vitamin D levels may help.
Medalle, R., C. Waterhouse, and T. J. Hahn. Vitamin D resistance in magnesium deficiency. The American journal of clinical nutrition 29.8 (1976): 854-858.
https://doi.org/10.1093/ajcn/29.8.854
Rock, Edmond, et al. Dietary magnesium deficiency in rats enhances free radical production in skeletal muscle. The Journal of nutrition 125.5 (1995): 1205-1210.
https://doi.org/10.1093/jn/125.5.1205
Oh, J. H., et al. The level of vitamin D in the serum correlates with fatty degeneration of the muscles of the rotator cuff. The Journal of bone and joint surgery. British volume 91.12 (2009): 1587-1593.
https://doi.org/10.1302/0301-620X.91B12.22481