LEVELS – A Whole New Level #268 - The truths about obesity, skinny fat, TOFI & why thin people can be unhealthy | Dr. Robert Lustig & Mike Haney
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Nov 21, 2024 
Dr. Robert Lustig, a New York Times bestselling author and obesity expert, along with Mike Haney, dive deep into the complexities of fat storage. They reveal that obesity isn't just about calories but is significantly influenced by refined carbs and high insulin levels. Their discussion highlights the dangers of visceral fat, the concept of being 'thin on the outside but fat on the inside,' and the impact of stress on weight. They also explore the idea of being healthy at any size and the environmental factors contributing to obesity.
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Types of Fat Tissue
- Adipose tissue is any fat tissue, while subcutaneous fat is stored under the skin (e.g., 'big butt fat').
- Visceral fat surrounds organs, and ectopic fat includes both visceral and liver fat.
Subcutaneous Fat and Metabolic Health
- Total body fat cell number is determined by age two.
- Subcutaneous fat is not metabolically harmful until a certain threshold (around 22-25 pounds).
Visceral Fat and Metabolic Mayhem
- Visceral fat drains into the portal vein, directly affecting the liver and leading to metabolic issues more quickly than subcutaneous fat.
- This explains why thin people can be metabolically unhealthy ("thin on the outside, fat on the inside").
