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

Why Brain Health Experts Are Suddenly Talking About Mushrooms
Researchers are zeroing in on a little-known antioxidant that may help support cognitive health as we age.

The 14 Most Sustainable Fish to Eat—and 11 Types to Avoid
From salmon to shrimp, here’s how to make smarter seafood choices for your health and the planet.

15 Free YouTube Workout Channels for Every Skill Level and Exercise Style
Get in a fun, effective, and totally free workout at home with these vetted, streamable classes.

Want Healthier Hair? These Nutritionist-Recommended Foods Can Help
Certain evidence suggests that the right nutrients can aid in healthy, strong, and shiny strands.

I’m a Nutritionist, and This Smart Water Bottle Actually Helps Me Drink More Water
Turns out, the right bottle can change your entire hydration game.

A Healthy Grocery List You Can Actually Afford
You can eat well on a budget, and as a dietitian, I’ll walk you through exactly how to do it.

These Grocery Delivery Services Make It Easy to Avoid Crowds and Save Time
Make life easier by having fresh ingredients and other household items sent directly to your door.

I'm a Nutritionist—Here's What I Think of the New Factor x Sakara Salads
Sakara chic meets Factor convenience.
I'm a Nutritionist. Here's the Truth About the Latest Melatonin Safety Scare
Recent reports have everyone rethinking melatonin. Here’s what the science really says.
10 Surprising Research-Backed Health Benefits of Moringa
It has anti-aging properties, but that's just the beginning of what it can do for your body.

Early Exposure to Peanuts Lowers Allergies—Try These 6 Expert-Approved Baby Snacks
New research shows introducing peanuts early can help reduce allergies. Good Housekeeping's registered dietitian shares the best baby snacks that make peanut exposure safe, easy, and delicious.

We Tried the Viral Vegan Meal Kit Everyone’s Talking About
We cooked with Purple Carrot, the trending vegan meal kit. The results might surprise you.