How does the consumption of specific types of food affect the levels of IGF-1 in the body?
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Consumption of certain foods can influence insulin-like growth factor-I (IGF-I) levels in the body. Fish intake, specifically oily and non-oily fish, is positively associated with higher circulating IGF-I concentrations . Additionally, poultry consumption at least twice a week is linked to increased IGF-I levels . Dairy and milk intake have also been shown to elevate IGF-I concentrations, with each 400g increment in daily dairy intake associated with higher IGF-I levels . On the other hand, plant protein intake has been found to increase IGF-1 levels similarly to animal protein intake, indicating no significant difference in IGF-1 response between the two sources . Soy protein, when consumed in large amounts, may modestly elevate IGF-1 levels, but this effect is not substantial enough to base dietary decisions solely on IGF-1 modulation .
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6 Citations | Consumption of reduced-protein Growing Up Milk Lite (GUMLi) or cow's milk did not significantly affect IGF-1 levels at 2 years, but cow's milk protein intake was positively associated with IGF-1 concentrations. |
10 Citations | Consumption of soy protein, in large amounts (>25g/day), may modestly increase circulating levels of unbound IGF-1 compared to control protein, as per the research findings. |
22 Citations | Consumption of dairy and milk is associated with higher IGF-1 levels, while cheese and yogurt intake showed no significant impact on IGF-1 concentrations in Bavarian adults. |
| Consumption of animal and plant protein similarly increases IGF-1 levels in individuals with type 2 diabetes, improving metabolic parameters without significant differences between the two protein sources. | |
| Consuming oily fish, non-oily fish, and poultry at least twice a week is associated with higher circulating IGF-I concentrations, while other food groups showed weaker associations. |
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