{"id":647,"slug":"what-is-the-difference-between-white-fat-and-brown-fat","question":"What is the difference between white fat and brown fat?","intent":"informational","language":"en","url":"https://worldwiki.io/q/what-is-the-difference-between-white-fat-and-brown-fat","entity":{"slug":"adipose-tissue","name":"Adipose Tissue","url":"https://worldwiki.io/entity/adipose-tissue"},"answer":{"short_answer":"White fat cells hold one large lipid droplet, which fills about 90% of the cell, and mainly store energy as triglycerides. Brown fat cells hold many small droplets and many mitochondria. They use uncoupling protein 1 (UCP1) to burn energy as heat without shivering. In adults, brown fat is found mainly in the neck, above the collarbones, along the spine and in the centre of the chest. White fat is found under the skin and around the organs.","detailed_answer":"<p>A third type, beige fat, forms inside white fat depots after cold exposure or similar stimuli and can also produce heat <span class=\"ref\">[2]</span>. Studies from 2009 found brown fat more often after cold exposure and less often in older people and people with a higher BMI <span class=\"ref\">[5]</span>.</p>","format":"paragraph","confidence":75,"verified_at":"2026-09-18 06:21:20","updated_at":"2026-09-18 15:21:20"},"sources":[{"id":116,"title":"Comparative anatomy and metabolic profiles of brown and white adipose tissue in humans","url":"https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2026.1821542/full","publisher":"Frontiers in Endocrinology","type":"journal","accessed_at":"2026-09-19 18:01:36"},{"id":117,"title":"Plasticity of Adipose Tissues: Interconversion among White, Brown, and Beige Fat and Its Role in Energy Homeostasis","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11048349/","publisher":"Biomolecules (MDPI), via PubMed Central","type":"journal","accessed_at":"2026-09-19 18:01:36"},{"id":118,"title":"Adipose Tissue (Body Fat): Anatomy & Function","url":"https://my.clevelandclinic.org/health/body/24052-adipose-tissue-body-fat","publisher":"Cleveland Clinic","type":"organization","accessed_at":"2026-09-18 18:00:51"},{"id":119,"title":"Visceral Fat: What It Is & How It Affects You","url":"https://my.clevelandclinic.org/health/diseases/24147-visceral-fat","publisher":"Cleveland Clinic","type":"organization","accessed_at":"2026-09-18 18:00:51"},{"id":120,"title":"Brown adipose tissue: what have we learned since its recent identification in human adults","url":"http://www.scielo.br/j/abem/a/NF7L3d7NZbPxQXwtXnbB6Jn/?lang=en","publisher":"Arquivos Brasileiros de Endocrinologia & Metabologia","type":"journal","accessed_at":"2026-09-19 18:01:38"},{"id":121,"title":"Leptin 30 years – A chat with Jeffrey M. Friedman","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11967189/","publisher":"Archives of Endocrinology and Metabolism, via PubMed Central","type":"journal","accessed_at":"2026-09-19 18:01:39"},{"id":122,"title":"Lipodystrophies - StatPearls","url":"https://www.ncbi.nlm.nih.gov/books/NBK459180/","publisher":"NCBI Bookshelf, U.S. National Library of Medicine","type":"journal","accessed_at":"2026-09-19 18:01:40"},{"id":123,"title":"Obesity and overweight (fact sheet)","url":"https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight","publisher":"World Health Organization","type":"government","accessed_at":"2026-09-19 18:01:41"},{"id":124,"title":"A Simple and Effective Mechanical Method for Adipose-Derived Stromal Vascular Fraction Isolation","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11055620/","publisher":"Cureus, via PubMed Central","type":"journal","accessed_at":"2026-09-19 18:01:41"},{"id":96,"title":"Important Patient and Consumer Information About Regenerative Medicine Therapies","url":"https://www.fda.gov/vaccines-blood-biologics/consumers-biologics/important-patient-and-consumer-information-about-regenerative-medicine-therapies","publisher":"U.S. Food and Drug Administration","type":"government","accessed_at":"2026-09-18 18:00:38"}],"published_at":"2026-09-18 06:21:20"}