Because my husband was already fully into advanced myeloma before he was diagnosed, I am not as educated as others here on MGUS. What I will mention about diet is highly processed foods, especially those full of corn. Much of the corn in highly processed foods is sprayed with herbicides. Herbicides have an association with myeloma.
The other thing I would mention is vitamin D for your bones. Keeping your bones healthy and your kidneys healthy are paramount if you do get myeloma. Many, many people never get myeloma but if you do, you want to start with healthy bones and healthy kidneys. The great doctors at Mayo told husband to take calcium with D, and walk because it is the single best exercise for your bones, and hydrate, hydrate, hydrate.
I found the comment you made that you were low risk of becoming myeloma interesting. When husband was diagnosed in 2010, we attended a weekend workshop and it was explained at that time, they were not sure why some people changed and some didn’t. I love that they can stratify that now.
May I ask if you were in the military or had any of the typical exposures that might have put you at risk?