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Alice Callahan, Heather Leonard, & Tamberly Powell
Lane Community College via OpenOregon

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ALICE CALLAHAN, PHD

Alice Callahan is a nutrition instructor at Lane Community College and holds a PhD in Nutritional Biology from the University of California, Davis. She is also a health and science writer and the author of The Science of Mom: A Research-Based Guide to Your Baby’s First Year, published by Johns Hopkins University Press. In both her teaching and writing, she focuses on making science accessible and applicable to everyday life. She is the mother of two children and enjoys running, hiking, reading, and baking.

HEATHER LEONARD, MED, RDN

Heather Leonard is a registered dietitian nutritionist with a master’s degree in Prevention Science. She is a nutrition instructor at Lane Community College where she loves helping students make connections between nutrition and their personal lifestyles. She is currently pursuing her PhD in Prevention Science at the University of Oregon. She is the mother to three children and enjoys exploring the outdoors through trail running and ultramarathons.

TAMBERLY POWELL, MS, RDN

Tamberly Powell is a registered dietitian nutritionist with a master’s degree in Nutrition and Foodservice Management. She is a nutrition faculty member and program coordinator for Health and Nutrition at Lane Community College. She is passionate about saving students’ money by offering low-cost or OER materials and engaging students through online learning. She enjoys being a mom of two girls, staying active through outdoor recreation in the Pacific Northwest, playing tennis, and reading a good book.