Food is any substance consumed to provide nutritional support for an organism. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells to provide energy, maintain life, or stimulate growth. Historically, humans secured food through two methods: hunting and gathering and agriculture. Today, the majority of the food energy required by the ever increasing population of the world is supplied by the food industry. Food safety and food security...

Novak Djokovic (Serbian: Новак Ђоковић, Novak Đoković, pronounced [nôʋaːk d͡ʑôːkoʋit͡ɕ] ( listen); born 22 May 1987) is a Serbian professional tennis player widely regarded as one of the greatest tennis players of all time. Djokovic has won 12 Grand Slam singles titles, the fourth most (equal with Roy Emerson) in history, and held the No. 1 spot in the ATP rankings for a total of 223 weeks. In majors, Djokovic has won six Australian Open titles (the only male player to win 3 consecutive Australian Open during open era), three Wimbledon titles, two US Open titles and one French Open title. In 2016...