The time it takes from eating food to excreting it is called the “gut transit time”. Researchers gave participants muffins dyed with strong blue food colouring, turning their poo blue ...

For blue, try butterfly pea flower tea or blue ... to cool completely before you add it to your recipe. Homemade food ...

1. Carefully pour some milk in a dish so it just covers the bottom. 2. Gently add one or two drops of red, blue, and yellow food coloring to the same spot in the center of the milk. 3. Dip a cotton ...

West Virginia Gov. Patrick Morrisey signed a bill into law this week that bans some artificial dyes as well as two preservatives from foods sold statewide.