Photo of author Christina Heiser

Christina Heiser

PS Contributor

Christina Heiser is a New York City-based freelance writer who's been covering health, beauty, fitness, and nutrition for over a decade. Her work has appeared in PS, Women's Health, Shape, Parade, and more. She is an ambassador for Beyond Celiac and is passionate about raising awareness for celiac disease. When she's not working, you can find Christina traveling the world in search of the best gluten-free eats.

Latest Posts From Christina

Do You Really Need a Vitamin Routine?

Jul 1, 2026

Do You Really Need a Vitamin Routine?

You probably have that friend who swears by the vitamin regimen they take every morning.

What Experts Really Think About Lemme's GLP-1 Supplement

Jun 27, 2025

What Experts Really Think About Lemme's GLP-1 Supplement

Don't get me wrong, do what makes you feel good.

Celebrities Love the 80/20 Rule Diet — Do Dietitians?

Feb 25, 2025

Celebrities Love the 80/20 Rule Diet — Do Dietitians?

Celebrities love a diet.

6 Surprising Culprits of Eye Irritation, According to Experts

Feb 10, 2025

6 Surprising Culprits of Eye Irritation, According to Experts

Fact: Dry, irritated eyes can be incredibly uncomfortable (if you know you know).

Why Do Teslas Make You Motion Sick?

Oct 23, 2024

Why Do Teslas Make You Motion Sick?

Electric vehicles are pretty popular these days, and for good reason

Do You Need a GI Psychologist? Here's What to Know Before Taking Your Gut to Therapy

Oct 15, 2024

Do You Need a GI Psychologist? Here's What to Know Before Taking Your Gut to Therapy

Take it from someone who knows: Managing a chronic digestive disorder is a big freaking deal.

Experts Break Down Celiac Disease, the Autoimmune Condition

Aug 21, 2024

Experts Break Down Celiac Disease, the Autoimmune Condition

This informational guide, part of PS's Condition Center, lays out the realities of this health concern: what it is, what it can look like, and strategies that medical experts say are proven to help.