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
6 Best Organic Meal Delivery Services, Tested by Nutritionists
Eat healthy with our top choices for the best meal kits and ready-to-eat meals.
Good Housekeeping’s 2023 Best Snack Awards
Dietitians, food scientists, chefs and taste testers evaluated thousands of snack samples to bring you our award-winning picks.
Your Avocado Oil Is Probably Rancid — Here's How to Tell
A new study addresses shocking revelations about a lot of brands on the market.
13 Top Health Benefits of Watermelon, According to Nutritionists
This water-packed summer staple can do wonders for your skin, eyes and overall health.
24 Ways to Ease Bloating and Get a "Flat" Stomach
Feel more comfortable in your clothes with a few healthy tips from fitness and nutrition experts.
6 Best Baby Formulas of 2024, According to Experts and Parents
Our registered dietitians analyzed the ingredients and claims of over 50 different formulas to find the best for your baby.
Expert Breastfeeding Diet and Nutrition Advice From Registered Dietitians
These RDs, who are also lactation consultants, answer all your questions about what to eat (and avoid) during this time.
10 Best Keto Meal Delivery Services of 2024
Tired of counting carbs? Let these subscriptions do the hard work for you!
10 Best Probiotics for Women, According to Registered Dietitians
These are our top picks for gut and immune health.
I Tried the Katalyst EMS Suit to See if It’s Worth It
Our in-house personal trainer used the full-body workout suit consistently over the course of six months to see if it's worth the hype.
We Reviewed Apple Fitness+ for 6 Months to See if the App Is Worth It
We even got a behind-the-scenes tour of the Fitness+ studios for the inside scoop.