Digestion is poorly understood in large pelagic sharks. By developing a methodology for collecting samples inside of a shark's stomach, we can explore digestion and metabolism in highly cryptic species. Prior methods require researchers to catch sharks and lavage their stomach or swab orifices while the animal is restrained. I present a field methodology for exploring digestion via low-impact samplers, as well as various methods for quantifying digestive characteristics in a laboratory environment. Field methods are cheaper and more accessible than previous methods; they also present less risk to both the animal and the researchers. This project ultimately will reduce cost and increase accuracy of gastrointestinal research in sharks. This has implications for our understanding of evolution and predicting responses to climate change in some of the largest marine predators.