I meant milk or eggs as a supplement in general when looking at diet. Both together will be stronger but they have a lot of overlap. Its not strictly necessary but when looking for fewest items they ended up covering a lot of bases. It is why I specified dairy with indian vegetarians in the last sentence because I thought someone might mistake I was mentioning eggs in relation to indians. It really does not require much because again these are things that take years to really cause any issue. Another that is almost better is fatty fish, especially if you eat the bone or use it in broth. I hate fish though which kinda stinks. Well that and the way we poisoned the oceans so much you actually have caution about eating to much of some kinds of fish.