I has done it. Spinach and other leafy dark greens will give you fibre and vit c and a bit more iron, too -- orange juice too acid for me, actual oranges (tiny tangerines if you can get them) are better, or even moreso blueberries.

I also feel compelled to plug Cafe Nour's Shawarma -- massive plate of iron loading, put some tabbouleh on the side for the vitamin c, wash it all down with some stomach-kind mint tea