Yes, it’s fine. It’s often called Soba. Read the ingredients though as there are often other products in there you shouldn’t eat. I made that mistake the other day. I bought a box and was about to dig into my supper when I had a funny feeling in my stomach [sic] and quickly checked the box. Sure enough, my “buckwheat pasta was more than 70% wheat. I’d only had a couple noodles so I don’t think too much damage was done! Lucky me!