The Summary
In this randomized crossover trial, 47 older adults aged 60 and above consumed either a pulse-protein diet or a meat-protein diet (lean pork) for eight weeks each. Both diets aligned with US dietary guidelines. While both groups saw improvements in glucose, cholesterol, inflammation, and overall body fat, the pulse-based diet yielded distinct advantages. Specifically, the pulse diet led to a significantly greater reduction in the visceral-to-total fat ratio and, surprisingly, a larger increase in ferritin (iron storage) compared to the meat-heavy diet.
Why this is interesting
This study challenges the common belief that plant-based diets compromise iron absorption. Not only did the pulse diet safely boost iron markers more than meat, but it also specifically targeted visceral fat—the dangerous fat wrapping around internal organs. For readers, this suggests that replacing portion of lean meats with fiber-rich pulses like beans, chickpeas, or lentils is a highly effective, accessible strategy to reduce harmful belly fat and optimize metabolic and cardiovascular health without sacrificing crucial micronutrient levels.