ArticleNutrition research and practice2026
Time-restricted feeding counters brown adipose tissue whitening and inflammation in obese mice under chronic light exposure.
Article in Nutrition research and practice, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
objectivesTime-restricted feeding (TRF) is a promising dietary strategy to improve the metabolic parameters associated with obesity, but its potential benefits in obesity linked to nighttime light exposure remain largely unclear. This study examined whether chronic light exposure alone, or in combination with TRF, modulates brown adipose tissue (BAT) in lean and obese mice. MATERIALS/
methodsSix-week-old male C57BL/6J mice were fed a low-fat diet (LFD) or a high-fat diet (HFD) for six weeks, and were assigned to one of three experimental conditions for an additional 6 weeks: control light exposure, continuous 24-h light exposure, or 24-h light exposure combined with TRF. This yielded 6 experimental groups: LC, L24h, L24hT, HC, H24h, and H24hT.
resultsHistological analyses showed that chronic light exposure alone induced BAT whitening, characterized by lipid droplet accumulation and structural disorganization, even in LFD-fed mice. This whitening occurred without a decrease in uncoupling protein 1 mRNA and protein levels, suggesting mechanisms independent of thermogenic suppression. Instead, lipid accumulation and elevated
conclusionThese findings suggest that TRF may have clinical implications for obese night workers by preventing BAT from shifting toward an inflammatory and metabolically dysfunctional phenotype associated with nighttime light exposure.
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