Ideal is to have access to minimally processed foods
The NOVA food classification system states that UPFs are industrial formulations “made mostly or entirely with substances extracted from foods, often chemically modified, with additives and with little, if any, whole foods added.”
A recent study questioned the value of the NOVA classification after finding that it had “low consistency” when assigning foods.
Previous studies have nevertheless revealed that UPFs and their constituents negatively affect the gut microbiota and can cause systemic inflammation, insulin resistance, and increased body weight.
Dr. Drouin-Chartier concluded: “There is a need to facilitate ... access to minimally processed foods. This encompasses [appropriate] pricing and physical access [to such foods], that is, addressing the issue of food deserts.”
The NHS I and II and HPFS studies are supported by National Institutes of Health. Dr. Drouin-Chartier has reported a relationship with the Dairy Farmers of Canada. No other financial relationships were declared.
A version of this article first appeared on Medscape.com.