Men vitamin

Do your husband's take a daily vitamin or regimen of vitamins while ttc? We had a bad stillbirth 11 months ago at 22 weeks, I had an infection, there was absolutely nothing wrong with baby :( in that time I've made healthier choices to help us conceive again now that I'm ready. So do you worry about your SOs vitamins or just your own? I'm on metformin and prenatal vitamin. Thanks!