Kelsey Costa, M.S., R.D.N.

Medical Reviewer, Author

Education: B.A. in English, Rhode Island College; B.S. in Food and Nutrition, Framingham State University; M.S. in Health and Wellness Management, Merrimack College
Expertise: Nutrition, Disease Prevention and Management, Health

Kelsey Costa, M.S., R.D.N., is a registered dietitian and a nutrition consultant for Hone Health. She has research experience and holds dual bachelor’s degrees and a master’s degree, encompassing English, food and nutrition, and health and wellness management. As a premier authority in dietetics and health promotion, Kelsey’s expert insights greatly impact the public’s understanding of health and nutrition, and her commentaries are frequently cited in global publications.

About the Edge

The Edge is an editorial outlet from Hone Health that delivers science-backed, expert-driven content to help you live better for longer. Our content is powered by experienced health and lifestyle journalists and reviewed by members of our Advisory Board, who are notable experts in their respective disciplines, from urology and endocrinology to nutrition and fitness.

Latest From Kelsey Costa, M.S., R.D.N.

These Are the Best NAC Supplements You Can Buy, Say Experts

Plus, learn about the amino acid’s powerful benefits.

Could Muscle-Building Creatine Help You Lose Weight?

The supplement can improve your body composition—but it’s complicated.

Does Diet Soda Break a Fast?

If you’re fasting for the longevity benefits, put down the diet pop.

Would You Give Up Food For Two Days to Live Longer?

Can’t stomach a daily intermittent fast? An occasional 48-hour fast might be all you need for benefits.

Can (and Should) You Drink Coffee While Fasting? It Depends

If you’re a diehard Dunkin’ bro, the answer might be “no.”

Turkey Bacon Is Healthier Than Bacon, But Is It Healthy?

It’s lower in saturated fat and calories than bacon, but it’s still highly processed.

9 Signs and Symptoms of Omega-3 Deficiency

These fatty acids combat inflammation—and are critical for your heart and brain.

Combining Keto and Intermittent Fasting Might Be the Fastest Way to Torch Fat

Double down on fat loss with these two metabolic firecrackers.

Should You Combine Intermittent Fasting and Working Out? Experts Explain

Hint: it depends on the type of workout and your fitness goals.

Does Apple Cider Vinegar Break a Fast? Not If You Do This

Forget the mid-morning IF slump.

I’m a Cardiologist. This Is What People Get Wrong About Keto

Eating more polyphenols, MCT oil, and fasting may offer the same benefits of keto without the restriction.