
Delivering timely and accurate insights on nutrition science, trends, and news.
Kelsey Costa, MS, RDN
Expert Source
Registered dietitian nutritionist (RDN), licensed dietitian nutritionist (LDN), and master certified wellness coach (MCWC) with dual bachelor's and a master’s degree.
Specializes in integrative and functional nutrition, nutrition communication, and health promotion.
Founder of Dietitian Insights, a collaborative and online publication for dietitians.
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What journalists are saying
Features in Healthline Media brands
Updated on February 14, 2025.
Healthline
FDA Bans Red Dye from Food, Ingested Drugs In US, Citing Cancer Risks, January 16, 2025
Eating Dark Chocolate May Help Lower Your Risk of Type 2 Diabetes, December 4, 2024
TikTok's Obsession with Magnesium: Healthy or Hype?, February 29, 2024
Running Won't Help You Lose Weight, But It May Prevent You from Gaining It, February 9, 2024
Taking a Daily Multivitamin May Help Slow Cognitive Aging and Boost Memory, January 18, 2024
Stress Eating Comfort Foods Can Increase Mental Health and Heart Disease Risk, December 11, 2023
Ultra-processed Foods Linked to Developing Multiple Health Conditions, November 15, 2023
Too Much Salt Could Increase Your Risk of Type 2 Diabetes, Study Finds, November 3, 2023
High Triglycerides May Lower Dementia Risk but Raise It for Stroke, Heart Disease, October 26, 2023
Women Over 40 Who Adopt DASH Diet May Have Lower Risk of Cognitive Decline, October 23, 2023
Swapping Starchy Foods for High Fiber Meals Can Help You Avoid Weight Gain, September 29, 2023
'Produce Prescriptions' May Help Lower Cardiovascular Disease Risk, August 31, 2023
Eating a Small Amount of Nuts Daily May Help Lower Your Depression Risk, August 18, 2023
Prediabetes Increases Risk of Heart Failure, Stroke and Other Conditions, August 11, 2023
Drinking Kombucha May Help Reduce Blood Sugar Levels for People with Type 2 Diabetes, August 1, 2023
These 5 Foods May Extend Your Life and Reduce Risk of Chronic Diseases, July 25, 2023
Study on Type 2 Diabetes and Weight Loss Finds Intermittent Fasting Beats Cutting Calories, July 24, 2023
WHO Says Aspartame May Cause Cancer, What Experts Want You to Know, July 14, 2023
No Ketone Drinks Won't Help Your Work Out, July 3, 2023
USDA to Crack Down on Misleading Meat Labels like 'Free-Range' and 'No Antibiotics', June 16, 2023
How Flavanol-Rich Foods Could Help Boost Your Memory, Cognition, May 31, 2023
Medical News Today
Mediterranean diet may boost memory by changing gut makeup, January 11, 2025
Fasting may have health benefits, but there could be a downside, study suggests, August 22, 2024
Dietary changes may treat obesity by giving mitochondria a boost, July 28, 2024
Unhealthy diets are still prevalent for many people in the United States—here’s why, June 17, 2024
Flavonoid-rich foods and drinks tied to an up to 28% lower risk of type 2 diabetes, May 30, 2024
When does the loss plateau occur on drugs like Ozempic, and can you delay it?, May 1, 2024
Korean fermented food and menopause symptoms, April 25, 2024
Poor diet increases cancer risk: Scientists uncover missing link, April 17, 2024
Are plant-based meat substitutes really better for the heart than meat options?, April 12, 2024
Obesity and a high fat diet may accelerate brain aging, lead to cognitive decline, April 6, 2024
Eating a dozen eggs per week may not affect your cholesterol, study says, April 2, 2024
Opting for animal vs plant protein may affect sleep quality differently, March 14, 2024
Resistant starch diet may aid weight loss, boost insulin sensitivity, March 6, 2024
Can a daily dose of cinnamon help lower blood sugar?, February 6, 2024
Three servings of kimchi per day may lower obesity risk, January 30, 2024
Drinking fruit juice daily may lead to weight gain, particularly in children, January 19, 2024
Plant protein linked to healthy aging in women, study finds, January 18, 2024
How daily vitamins may help improve memory, cognition in older adults, January 18, 2023
Holiday weight gain may have long-term impact, December 30, 2023
Holiday deserts: Are Great British Bake Off recipes unhealthy?, December 25, 2023
What to know about diarrhea during fasting, December 21, 2023
Fasting may improve gut microbiome balance in people with obesity, December 20, 2023
Guayusa tea and lion’s mane supplements could improve cognitive function, December 14, 2023
Probiotic bacteria found in yogurt, kefir may help improve mood, December 6, 2023
Antioxidant-rich broccoli sprouts support gut health, lower inflammation, November 5, 2023
Adding sugar to coffee, tea may not significantly impact health, October 28, 2023
Intermittent fasting is safe, effective for people with type 2 diabetes, October 27, 2023
Is fructose the unifying factor of all mechanisms underlying obesity?, October 23, 2023
Ultra-processed foods may be as addictive as smoking, study says, October 18, 2023
Could some diets help manage long COVID?, October 18, 2023
Prebiotics may help weight loss by changing brain’s response to food, October 17, 2023
Reducing abdominal fat may help reverse prediabetes, October 3, 2023
Ginger supplements may be helpful in treating autoimmune diseases, September 28, 2023
Not all plant-based diets linked to a lower risk of Parkinson’s disease, September 27, 2023
Spinach extract may help diabetic wounds heal faster, study shows, September 21, 2023
Hypertension, high cholesterol, and other metabolic traits linked to higher heart attack, stroke risk, August 25, 2023
How lifestyle choices are harming the cardiometabolic health of younger adults, August 23, 2023
Pecans may have protective effects against obesity, diabetes, August 8, 2023
Pairing exercise with weight loss can improve prediabetes, obesity, July 6, 2023
Probiotics may be the key to treating depression, June 28, 2023
Intermittent fasting and traditional calorie counting about equal for weight loss, June 27, 2023
Does intramuscular fat predict risk of cognitive decline?, June 13, 2023
Obesity: Men and women have different drivers that lead to weight gain, April 13, 2023
Eating high-fat, high-sugar foods can change our brains to prefer sweets, March 24, 2023
Other features in popular media
Updated on February 14, 2025.
Ask Men
Does Ashwagandha Work for Anxiety? Here's What to Know, February 22, 2024
What Is the TLC Diet for Cholesterol? The Benefits and How to Try It, August 29, 2023
Best Life
12 Best Foods to Ease Anxiety, Experts Say, September 14, 2023
7 Foods That Can Help Whiten Your Teeth Naturally, Experts Say, July 23, 2023
Carewell
Best Diets to Prevent Diabetes: Using Food to Keep Your Blood Sugar In Check, December 19, 2023
What To Do If You’re Prediabetic, November 2, 2023
How to Create a Meal Plan, September 14, 2023
Clean Plates
7 Healthiest Foods at Target Dietitians Swear By, November 18, 2023
The Cabbage Soup Diet Is Gaining Popularity Again, and Experts Aren’t Happy, September 21, 2023
8 Foods That Decrease Your Stress Hormone, June 17, 2023
Clockify
What is First Shift: Benefits, Drawbacks, and Tips, November 13, 2023
How to set SMART goals (+ examples and templates), June 29, 2023
Cradlewise
Foods to eat or avoid when pregnant, December 21, 2023
Dateline Health Africa
The Role of Diet In The Control of Hypertension: What Africans Should Know, May 9, 2023
Eat This, Not That!
7 Worst Juice Brands to Stay Away From Right Now, October 31, 2023
What Happens to Your Body When You Drink Soda Every Day, September 1, 2023
7 Supplements To Help You Poop Immediately, April 8, 2023
EatingWell
4 Supplements You Shouldn't Take for Gut Health, According to Dietitians, May 1, 2024
The #1 Nutrient to Help Lower Cholesterol, According to a Dietitian, November 9, 2023
Is Instant Coffee as Healthy as Regular? Here’s What Health Experts Say, October 25, 2023
Does Cheese Cause Constipation or Diarrhea? Here's What Dietitians Say, October 9, 2023
Everyday Health
The Best Breakfasts for Weight Loss, Recommended by Experts, January 26, 2024
Noom Weight Loss Review: What I Learned After Trying It For 30 Days, January 11, 2024
Health
How Does Freezing Food Change Its Nutritional Value? Registered Dietitians Explain, January 11, 2024
Food Sense
9 Health Benefits of Transitioning to a Vegan Diet, October 9, 2023
Forbes Health
What is Quercetin? Benefits, Foods and Side Effects, October 11, 2023
Giddy
How Much Fiber Do Women Need and Where Can They Find It?, October 19, 2023
How Much Fiber Do Men Need and Where Can They Find It?, October 9, 2023
Health Reporter
20+ Foods High in Potassium: Energize Naturally, December 27, 2023
Hone Health
How to Choose the Best Probiotics to Take With Antibiotics, According to an R.D., April 11, 2024
What is Fasted Cardio and Should You Do It?, April 5, 2024
Overhyped Multivitamin or Super Supplement?, February 22, 2024
Why Celebrities Are Obsessed With Yerba Mate, February 13, 2024
What to Avoid When Taking Glutathione, According to Experts, January 31, 2024
10 Easy Ways to Lower Your Blood Sugar Naturally, November 29, 2023
5 Best Pre-Workout Gummies to Supercharge Your Next Workout, November 22, 2023
Are There Any Legit Alternatives to AG1 Greens Powder?, November 20, 2023
11 Caffeine Alternatives for Clean Energy Without the Side Effects, November 15, 2023
Ask an RD: Is Vitamin Water Good For You?, October 25, 2023
Five Folic Acid Benefits No Sane Man Can Ignore, October 20, 2023
Are Seed Oils Really Toxic? Here’s What an R.D. Says, October 6, 2023
Want to KO Muscle Cramps? Try Pickle Juice, August 15, 2023
Huffpost
6 Surprising Things That May Interact With Your Supplements, July 19, 2023
Kickoff
What Kind of Diet Should I Follow to Support My Goals? Advice From a Registered Dietitian, May 12, 2023
LoseIt!
9 Key Hormones That Can Influence Your Weight Loss Journey, March 15, 2024
How Does Insulin Affect Weight Loss?, March 2024
What Is Food Noise and How Do We Turn It Down?, January 11, 2024
Do This, Not That: 6 Secrets to Making Weight Loss Resolutions Stick, December 21, 2023
Do You Have Zombie Eating Habits?, October 22, 2023
Why Your Support System Is Key to Weight Loss, Plus How to Build One, September 6, 2023
The Manual
Weight loss tips: How to recover from a diet slip-up, according to experts, January 20, 2024
Winter squash — why RDs love it (and their favorite ways to eat it), December 12, 2023
Chestnuts are a fall and winter favorite, and an RD tells us why you should be eating as many as you can, December 6, 2023
Cranberries are great for your health: RDs reveal how to add them to your diet this winter, November 17, 2023
What your anti-inflammatory diet is missing, according to registered dietitians, November 5, 2023
Mattress Clarity
How Does Sugar Affect Sleep?, June 22, 2023
MDLinx
Researchers Warn Physicians about Potential Dangers of Sucralose, June 12, 2023
Men's Health
Here Are 4 of the Best Intermittent Fasting Schedules, January 25, 2024
Everything You Need to Know About Magnesium Oil, December 29, 2023
The Best Foods to Eat for Prostate Health, According to Dietitians, November 14, 2023
The 30 Best Anti-Inflammatory Foods to Eat Daily, May 3, 2023
Men's Journal
How to Hydrate Fast After a Workout, February 2, 2024
Native Path
What Is The Best Time To Take Your Fiber Supplements?, December 5, 2023
Parade
The Healthiest Breads, According to Dietitians, Jul 15, 2024
Suddenly Craving Spicy Food? Here's What It Could Mean, May 8, 2024
This Popular and Delicious Snack Could Zap Belly Fat, According to Registered Dietitians, March 17, 2024
What Is 'Souping?' Here's What to Know About This Popular Health Trend, March 13, 2024
Registered Dietitians Share Their Top 10 Secrets for Losing Weight After 60, March 13, 2024
The One Thing You Should Never, Ever Do if You Have Insulin Resistance and Want to Lose Weight, March 6, 2024
The Absolute Best Hummus at the Grocery Store: According to Registered Dietitians, December 2, 2023
This One Simple Diet Tweak Lowers Blood Pressure in 72% of People Over 50, November 25, 2023
The Absolute Best Yogurts You Can Buy at the Grocery Store: According to Registered Dietitians, November 24, 2023
Here’s Exactly What Registered Dietitians Order When They Go To McDonald’s, October 1, 2023
Craving Sugar? Here’s What Your Body Is Actually Trying To Tell You, September 6, 2023
If You're Suddenly Craving Ice, Here's What Your Body Is Trying To Tell You, August 20, 2023
Eggs Are Actually Great for Your Vision—Here's How Many You Should Eat Weekly, August 5, 2023
The One ‘Healthy’ Snack You Should Avoid When You’re Trying To Lose Weight, July 20, 2023
Here's What Happens to Your Body if You Drink Diet Coke Every Day, July 5, 2023
A Popular Keto-Friendly Sweetener Has Been Linked to Heart Attack and Stroke, March 2, 2023
Parents
Why Do People Drink Red Raspberry Leaf Tea During Pregnancy?, July 24, 2023
Popular Science (PopSci)
Kombucha’s health benefits may go beyond our guts, August 3, 2023
SELF
13 Best Blenders for All Your Smoothies, Soups, and Sauce, May 9, 2023
SHEfinds
3 Best Low-Calorie, Low-Sugar Desserts You Can Enjoy Guilt-Free Every Day While Losing Weight, February 11, 2024
The 4 Healthiest Snacks That Hardly Ever Lead To Weight Gain, According To Experts, December 22, 2023
The Worst Canned Soups That Could Lead To Inflammation, Weight Gain, And High Blood Pressure, According To Dietitians, December 4, 2023
Doctors Say You Should Be Eating These 2 Complex Carbs In The Morning To Stabilize Blood Sugar And Slim Down Faster, December 3, 2023
Dietitians Say This Is The Healthiest Milk To Use In Your Coffee, November 16, 2023
4 Foods That Cause Insulin Resistance, Slow Your Metabolism And Make You Gain Weight, October 24, 2023
SingleCare
Is Sourdough Bread Good for Diabetics?, Jun. 26, 2024
7 potential benefits of dandelion root, December 26, 2023
10 folate-rich foods, November 21, 2023
The Best Diet for Kidney Disease, May 15, 2023
Sports Illustrated
The 8 Best Supplements for Bloating and Related Symptoms in 2023, November 1, 2023
The 4 Best Glucose Monitors of 2023, According to Registered Dietitians, May 9, 2023
Today's Parent
Can Pregnant Women Eat Crawfish?, September 6, 2023
Can Pregnant Women Eat Smoked Salmon?, September 6, 2023
The Upside
Suspect Leaky Gut? Know The Symptoms - and Get Support With This Guide, December 20, 2023
VegNews
The Complete Vegan Guide to the Elimination Diet, September 19, 2023
Forget Meat, the Veggie Burger Is King: 5 Top Vegan Picks From a Nutritionist, September 13, 2023
Why a Vitamin-Rich, Balanced Plant-Based Diet Is Beneficial for Runners, July 21, 2023
What Is a Vegan, Low-FODMAP Diet?, June 14, 2023
The Vitamin Shoppe
Research Confirms The Best Time To Workout for Weight Loss, October 19, 2023
WebMD
Study Shows DASH Diet Cuts Risk of Cognitive Decline in Women, October 24, 2023
Well and Good
5 Myths About Eating (and Taking) Magnesium for Wellness, Debunked by RDs Who Know Better, March 5, 2024
Wellness Patron
What Are The Healthiest Beans To Eat? Experts Elaborate On The Healthiest Beans, January 7, 2024
Woman's World
The Intermittent Fasting Diet: Is It All It’s Cracked Up to Be?, February 6, 2025
Scale Back on Sodium Without Sacrificing Flavor? Yes! What Experts Want You To Know About Green Salt, January 3, 2024
Women's Health
10 Best Fiber Supplements Of 2024, According To Doctors And Dietitians, February 2, 2024
