it definitely is! ms patient averages for zinc are inside the "normal range" but even so, still are lower than healthy controls' average zinc. sort of like with uric acid. sure we're normal, but it just happens to be about 100 points below the elusive "healthy controls".
but zinc is one to be careful with, nonetheless. i was severely deficient, but overdid the supplementing - sporadic, three months instead of one... there's a post that i think has more detail on it - 'ms zinc boys girls controls' or something very close to that
vitamin d3 is also important, calcium, b-complex, E, lecithin, omega fatty acids, probiotics, iron for women, plus a few others i'm sure! a good healthy diverse diet, ensuring adequate protein intake, fish 2-3 times a week, plenty of raw and strong-coloured fruit and veg, selected whole grains, nuts, seeds, plenty of water, that kind of stuff