If you eat a snack - a meatball, say, or a marshmallow - how will it affect your blood sugar? It's a surprisingly tricky question: the body's glycemic response to different foods varies based on individual genetics, microbiomes, hormonal fluctuations, and more. Because of that, providing personalized nutritional advice - which can help manage diabetes, obesity, and cardiovascular diseases, among other conditions - requires costly and intrusive testing, making it hard to deliver effective care at scale. In a paper in the Journal of Diabetes Science and Technology, researchers at Stevens Institute of Technology offer a new approach: a data-sparse...