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
Spending Extra on Avocado-Oil Snacks for Your Health? New Study Raises Concerns About Popular Snacks
I’ve been paying extra for avocado-oil foods. Now I’m thinking twice.
More People Are Taking Liquid Vitamins—But Should They Be?
Liquid vitamins might not be magic, but they can be a practical option for the right people.
I'm a Dietitian—Here's Why I Still Buy Little Spoon After 4 Years
As a dietitian and mom of two, I've tested plenty of kids' foods. This is the one I've kept buying through every stage.
Maternity & Postpartum Products Every Mom Should Know About
From bump to baby, these Good Housekeeping 2026 Parenting Award winners stood out for helping moms feel supported every step of the way.
The Baby & Kid Feeding Products That Make Every Mealtime Easier
From first bottles to family meals, these Good Housekeeping 2026 Parenting Award winners stood out for simplifying feeding at every age.
These Dietitian-Recommended Cereals Make Healthier Breakfasts Easy
Finding a better cereal doesn't have to be complicated. We asked dietitians to share the picks they actually recommend.
13 Nutrient-Dense Foods Dietitians Want You to Eat More Often
These foods will give you the most bang for your nutritional buck.
As Cyclospora Cases Rise, Experts Share the Best Way to Wash Your Fruits and Vegetables
Experts say rinsing fresh produce is important—but don't expect it to remove the parasite completely.
Nutritionists Say These Are the Best Foods and Drinks for All-Day Energy
Coffee isn’t the only answer!
The Rowing Machines Fitness Experts Actually Recommend
After logging hundreds of miles, these are the rowers that earned our top marks.
The 5 Best Compression Boots for Recovery, Tested by Trainers
Whether you're training hard or recovering from long days on your feet, these picks can help your legs feel refreshed.
Everything You Thought You Knew About MSG Is Wrong
MSG has been misunderstood for decades—what does the science actually show?