Various substances in milk, such as hormones or substances that, in turn, stimulate the formation of certain hormones, have an impact on the body and skin. There is a connection between milk consumption and a higher risk of skin diseases, such as acne. This has been proven by several observational studies involving children, adolescents, and young adults between the ages of seven and 30. It’s found that this correlation became stronger the more milk is consumed. Although milk in coffee or muesli is an integral part of the majority's daily fare, animal products are resource- and energy-intensive. They require much more space and water, hence generating more greenhouse gases than plant-based foods.