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Caroline Tien head shot - SELF

Caroline Tien

Caroline Tien is SELF’s nutrition and fitness writer. Prior to joining SELF in 2024, she worked at Hearst Connecticut Media Group, The San Antonio Express-News, and Newsweek. Her health and wellness writing has also appeared in a variety of other publications, including Greatist, Inverse, Verywell Health, and The Zoe Report. Originally from Rhode Island, she now lives in New York City and loves exploring the five boroughs.

Nutrition

How We Lost the Plot on Protein

It’s become a dietary touchstone of America. But experts warn it shouldn’t be.
Fitness

The Workout Routine an 80-Year-Old Used to Train for the Ironman World Championship

A New Jersey grandmother is now the oldest woman to complete the race.
Nutrition

Is the ‘Picklewich’ Actually Healthier Than a Sandwich?

I tried the viral Jimmy John’s swap—and asked an RD for her thoughts.
Nutrition

This ‘Healthy’ Sugar Substitute Might Be Messing With Your Gut

Here’s how to spot it.
Mental Health

5 Subtle Signs of Seasonal Depression to Watch Out For

Sure, SAD can famously make you feel, well, sad, but it can also cause less obvious symptoms that are easy to miss.
Nutrition

The Clear Protein Trend, Explained

How—and why—a medical supplement went mainstream.
Fitness

What Is HIIT—and How Can It Boost Your Workouts?

Demystifying that famous fitness acronym. Plus, how to use it in your own routine.
Workouts

The Norwegian 4x4 Workout Could Help Boost Your Endurance

Trainers also love this HIIT workout for its heart health benefits.
Food

13 Buffet Red Flags, According to Food Safety Experts

See any of these? It might be best to take your business elsewhere.
Nutrition

We Previewed the Starbucks Protein Cold Foam—Here Are Our Honest Thoughts

Do you need it for your health? Probably not. Does it taste good? Definitely.
Nutrition

These High-Protein Pumpkin Pancakes Are the Perfect Fall Breakfast

Seasonally appropriate and nutritionally solid? We’re sold.
Nutrition

How to Turn a Can of Tuna Into a High-Protein Meal

Six sandwich alternatives that prove canned tuna can be more versatile than you thought.
Fitness

Got Insomnia? These Exercises Are Proven to Help

A recent study has found four specific types make the biggest impact.
Nutrition

4 Signs You’re Eating Too Much Protein, According to GI Docs

Despite the constant high-protein hype, you probably need way less of this macro than you think.
Food

What Is Fire Cider—And Can It Actually Prevent Cold and Flu?

We asked an RD for her honest thoughts.
Nutrition

Is Skipping Breakfast Bad for You? Here's What Experts Say

Sometimes you’re just not in the mood for an early meal.
Fitness

Your Warm-Up Might Be Even More Vital to Your Workout Than You Thought

A new study provides even more evidence to tack one on to your routine.
Food

We Asked a Food Safety Expert About the Worms in Raw Salmon

We get the knee-jerk reaction to swear off the fish forever, but how warranted is it, really?