The effective use of color and contrast can be very beneficial to seniors with poor vision and/or cognitive issues. A Boston University study by Alice Cronin-Golomb, PhD. found that the color red can increase the intake of food and liquids, which can help to maintain weight and hydration. The contrast helps diners to recognize plates and glasses, as well as specific foods. I add a placemat of a lighter, solid color to make the plate stand out even more.