Filmmaker Michal Siewierski spends three years asking why so much nutrition advice contradicts itself, then puts more than twenty scientists, doctors, and researchers on camera to sort out the evidence. The film moves between clinical studies on heart disease and cancer, farm and slaughterhouse footage, and interviews addressing how diet choices ripple outward into water use, deforestation, and greenhouse gas emissions. Doctors describe patients reversing diabetes and heart conditions through diet changes, while researchers walk through the data behind competing claims about protein, dairy, and meat consumption. The film does not stop at personal health, following the supply chain from feedlot to dinner plate to show how individual eating habits connect to industrial agriculture's environmental footprint and to animal treatment practices most consumers never see. Siewierski keeps the tone investigative rather than preachy, letting the researchers carry the argument through data and case studies. It lands as a plain case for a plant-based diet, built on the specific studies and industry practices it puts on screen.