A new study found that meals containing higher amounts of protein lowered blood sugar levels compared with standard-protein meals, with no meaningful difference between animal and plant protein sources. The findings, reported by multiple sources, add to evidence that protein quantity matters more than source for immediate metabolic responses. According to a report on higher-protein breakfasts, such meals have been linked to steadier blood sugar levels [1]. Another review found that daily legume intake was associated with lower fasting blood sugar [2].
The research involved adults who consumed test meals on separate occasions, serving as their own controls. The design captured postprandial responses, according to the report. Both higher-protein meals — whether from animal or plant sources — led to lower blood sugar compared to a standard-protein meal. This aligns with the understanding that protein has important metabolic effects, as noted in dietary guides [3].
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