Nestle, the world's biggest food company, manufactures and markets a wide range of food products including dairy, meat, poultry and eggs. Susana Gonzalez/Bloomberg via Getty Images hide caption

itoggle caption Susana Gonzalez/Bloomberg via Getty Images

Nestle makes a range of products under the Boost brand marketed as liquid nutritional supplements or meal replacements. But nutritionists say they can't compete with all the benefits of eating real food. iStockphoto.com hide caption

itoggle caption iStockphoto.com