Research
Hormonal
GIP promotes fat accumulation and obesity by increasing lipoprotein lipase activity and energy storage in adipose tissue, whereas GLP-1 has no role in fat accumulation.
If you are managing obesity, understand that your body's natural GIP hormone may be encouraging fat storage, especially after high-fat meals. GLP-1 based therapies do not share this fat-promoting effect, which is a key difference between these two incretin pathways.
GoodSupportsHIGH confidence
GIP has been proposed to have a physiological role on nutrient uptake into adipose tissues, thereby linking overnutrition to obesity... GIPR-deficient mice on high-fat diets showed... higher energy expenditure... indicating that fat is utilized as the preferred energy substrate... Importantly, GLP-1 does not show any role in fat accumulation.
Why this rating
Strong evidence from genetic ablation studies in mice and human observational data, though human mechanistic trials are limited.
Source
GIP and GLP‐1, the two incretin hormones: Similarities and differences
Yutaka Seino et al. · Journal of Diabetes Investigation · 2010
DOI 10.1111/j.2040-1124.2010.00022.x
narrative_reviewCited 710×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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