Stefani Sassos, M.S., R.D.N., NASM-CPT
Nutrition & Fitness Lab Director
Stefani (she/her) is a registered dietitian, a NASM-certified personal trainer and the director of the Good Housekeeping Institute Nutrition and Fitness Lab, where she oversees all nutrition and fitness-related content, testing and evaluation. She holds a master’s degree in clinical nutrition from New York University, as well as advanced certifications as a Women's Fitness Specialist and a Behavior Change Specialist. Stefani is dedicated to providing readers with evidence-based content to encourage informed food choices and healthy living. She is an avid CrossFitter and a passionate home cook who loves spending time with her big fit Greek family.
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Latest from Stefani Sassos, M.S., R.D.N., NASM-CPT

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Everything You Need to Know About the New Peloton Bike+, According to Our Fitness Experts
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Allll the pumpkin spice things!

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We tapped celebrity personal trainer Kira Stokes to help us tone our arms, legs, abs, and more.

The 2020 Good Housekeeping Healthy Snack Awards
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5 Healthy Rices You'll Want to Add to Your Next Meal
These different rice varieties each offer great health benefits and nutrition.

8 Powerful Health Benefits of Kiwi You Should Know
This superfood can promote weight loss, healthy skin, and good digestion.

20 Healthy Snack Swaps That Taste Great Too
Avoid the mid-afternoon slump with these nutritious swaps.

10 Best Lower Ab Workouts for a Strong Core, According to Personal Trainers
FYI: These exercises are perfect for beginners.

15 Best Workouts for Toned Arms, According to Top Fitness Experts
Sculpt your biceps, triceps, and more with these unique moves.