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.
- Topic Specialties
Latest from Stefani Sassos, M.S., R.D.N., NASM-CPT
15 Best Granola Brands, According to Registered Dietitians
Our picks for the healthiest choices include low-sugar, vegan, gluten-free and grain-free options.
8 Best Kids' Meal Delivery Services, Tested & Reviewed
Our top picks have options for infants, toddlers, older kids and families.
Lululemon Studio Mirror Review: Workout Tech That's Worth the Hype
The smart fitness mirror offers over 10,000 unique fitness classes right in the comfort of your own home.
10 Best Vegetarian Meal Delivery Services, According to Testing
Make plant-based meal planning a breeze.
9 Best Indoor Cycling Shoes of 2024, According to Fitness Experts
Take your ride to the next level with top picks from Nike, Peloton, Shimano and more.
10 Best Inner Thigh Exercises, According to Fitness Pros
These moves will help you tone and sculpt your lower body fast.
A Complete Guide to Pilates for Beginners
Tone, strengthen and lengthen with this simple workout you can try at home.
The 2022 Good Housekeeping Healthy Snack Awards
Registered dietitians in our Nutrition Lab tested hundreds of snacks to bring you the top nutritious (and delicious!) picks for your grocery list.
7 Top Health Benefits of Pistachios, According to Registered Dietitians
Wondering if you can eat these little nuts every day? Here's what our experts have to say.
The 13 Best Vegan Protein Powders of 2024, Evaluated by Registered Dietitians
You don't have to follow a plant-based diet to enjoy these tasty picks!
10 Morning Stretches for Beginners
Perfect for improving flexibility and helping with lower back pain.
9 Best Healthy Frozen Desserts
These low-sugar and low-calorie frozen desserts are the perfect cure for any sweet tooth.