This article originally appeared on ETFdb.com Teucrium, the company behind the first corn ETF and innovative energy commodity products, doubled the size of its product lineup on Monday with the launch of three new single-commodity funds. Two of the new additions to the fast-growing ETF lineup are first-to-market concepts, while a third will offer exposure to a soft commodity already covered by two iPath ETNs. The new Teucrium products are: