Food-related stocks are mixed today.Tate & Lyle is giving the food producer sector a lift after the sweetener group more than doubled profits on sales that were boosted by higher corn prices. Meatpacker Hilton Food is also higher after saying that trading continues to be in line with expectations.But food retailers are lower following supermarket Morrisons' update.Like-for-like sales were up by 1.3% in the 13 weeks to October 31, a figure that failed to impress the market. Peers Tesco and Sainsbury are also nursing losses. Top performing sectors so far todayIndustrial Metals & Mining 7,898.10 +4.99%Mining 25,739.42 +4.35%Food Producers & Processors 5,011.63 +4.26%Alternative Energy 3,275.51 +3.86%Banks 5,144.67 +3.45%Bottom performing sectors so far todayAerospace and Defence 3,327.32 -1.71%Forestry & Paper 5,558.02 -0.96%Food & Drug Retailers 4,873.85 -0.88%General Retailers 1,733.21 -0.70%Technology Hardware & Equipment 542.61 -0.22%