In children with obesity, following a ketogenic diet for four months is associated with higher levels of adiponectin, which corresponds to improved insulin sensitivity and lower levels of systemic...
Mechanism
Synthesis from 1 study
When the body runs on fat instead of sugar, it makes ketones that tell fat cells to release more adiponectin and shut down inflammation that blocks it. More adiponectin helps muscles take up sugar better and improves blood vessel function.
Most probable mechanism
When the body burns fat for fuel instead of sugar, it produces ketones that bind to a specific receptor on fat cells, causing those cells to release more adiponectin. At the same time, ketones block a key inflammation trigger, which removes a brake on adiponectin production. Higher adiponectin levels then improve how the body uses insulin and burn fat, while also making blood vessels work better.
Carbohydrate intake is restricted, forcing the liver to convert fatty acids into ketone bodies, primarily β-hydroxybutyrate
β-hydroxybutyrate activates the GPR109A receptor on adipocytes, directly stimulating adiponectin gene expression and secretion
β-hydroxybutyrate inhibits the NLRP3 inflammasome, reducing systemic inflammation and removing suppression of adiponectin production
Elevated adiponectin enhances insulin sensitivity in skeletal muscle and liver by activating AMPK and PPARα pathways, increasing glucose uptake and fatty acid oxidation
Adiponectin improves endothelial function by increasing nitric oxide production and reducing oxidative stress in blood vessel walls
Less supported by current evidence, but not ruled out
Losing belly fat reduces local cortisol production, which lowers overall stress hormone levels. Lower cortisol removes a suppressive signal on adiponectin release from fat tissue.
Reduction in visceral adipose tissue decreases local activity of the enzyme 11β-HSD1, which regenerates cortisol from inactive cortisone
Lower local and systemic cortisol levels reduce chronic activation of the HPA axis, removing inhibition of adiponectin secretion
Reduced cortisol signaling permits increased adiponectin synthesis in adipose tissue
Evidence from Studies
Supporting (1)
Community contributions welcome
Low-Carbohydrate (Ketogenic) Diet in Children with Obesity: Part 2—Hormonal Effects of the Ketogenic Diet
Contradicting (0)
Community contributions welcome
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.