There are tons of great vegetarian/vegan resources on the web... PETA's GoVeg.com and the Vegetarian Resource Group are the best! Sign up for a free vegetarian starter kit from PETA by going here: http://goveg.com/VegKit/index.html
May be Delio Esteve is angry and short sighted. I know that you may get calcium and other minerals from supplementation but Delio Esteve is in opposition to do that.