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Catherine Guthrie

Catherine Guthrie

Latest stories

a person cuts open an avocado

Looking to Support Your Eye Health? Try Glutathione

Along with supporting eye health, this antioxidant fights toxicity, chronic disease, and premature aging. Learn how it works — as well as good food sources.

By Catherine Guthrie

General Health Nutrition Tips

a jar of flaxseeds

How Omega-3s Support Healthy Eyes

Omega-3s can help ease eyestrain. Learn how they work — as well as the best dietary sources.

By Catherine Guthrie

General Health Nutrition Tips

kiwi

The Role Vitamin C Plays to Support Healthy Eyes

This powerful antioxidant helps to protect the eyes from sun damage. Learn how it works — as well as the best dietary sources.

By Catherine Guthrie

General Health Nutrition Tips

sweet potatoes

How Vitamin A Supports Eye Health

This powerful antioxidant fights night blindness and dry-eye disease. Learn how it works — as well as the best dietary sources.

By Catherine Guthrie

General Health Nutrition Tips

a woman wearing sunglasses

Sunglasses: More Than Just a Cool Accessory

Wearing sunglasses isn’t just about style — they’re a crucial line of defense for protecting your vision. Here’s what to look for when choosing your next pair.

By Catherine Guthrie

a variety of fresh foods that support eye health

How to Eat for Eye Health

When it comes to eating for healthy eyes, carrots are just the beginning. Discover the best nutrients for eye health.

By Catherine Guthrie

Nutrition Tips Vitamins/Minerals

a woman holds her gut with clenched fists

How Ultraprocessed Foods Wreak Havoc on Your Metabolism

Eating UPFs can undermine your digestion, gut health, and metabolism. Here's why.

By Catherine Guthrie

Food Culture Inflammation

a person fills a colorful zip top baggie with fresh fruit

6 Ways to Cut Back on Ultraprocessed Foods (UPFs)

UPFs make up almost three-quarters of America’s food supply. Here are some tips to help reduce your consumption of ultraprocessed foods.

By Catherine Guthrie

Food Culture Mindful Eating

a burger in a gluten free bun

Anatomy of a Gluten-Free Hamburger Bun

Gluten-free hamburger buns may seem like a healthier choice, but they often contain many ultraprocessed ingredients. Here's a look at what's inside.

By Catherine Guthrie

a woman drinks a glass of orange juice.

How Does Eating Sugar Affect Insulin?

Discover how excessive sugar disrupts natural blood-sugar levels and contributes to metabolic disorders.

By Catherine Guthrie

Nutrition Tips Specific Health Conditions