NHS. https://www.nhs.uk/common-health-questions/food-and-diet/what-should-my-daily-intake-of-calories-be/
Diakses pada 10 Desember 2020Health. https://health.gov/our-work/food-nutrition/2015-2020-dietary-guidelines/guidelines/appendix-2/
Diakses pada 10 Desember 2020WHO. https://www.who.int/news-room/fact-sheets/detail/healthy-diet
Diakses pada 10 Desember 2020