
Kelsey Costa, MS, RDN
Freelance Writer (Nutrition) at Medical News Today
Kelsey Costa is a registered dietitian nutritionist, science communications consultant, and writer. She is an expert in translating evidence-based nutrition and health science into accessible and engaging content. As owner of Nutrition Insights LLC and Founder of Dietitian Insights, her mission is to help individuals achieve and maintain optimal health through well-informed choices based on the latest research findings.
Publications
- Medical News Today23 articles
- Dietitian Insights4 articles
- Consumer Health Digest4 articles
- Healthline2 articles
- Hone Health2 articles
- The Medical News Today1 article
- Health Canal1 article
Writes Most On
- Low-carb diet may eliminate need for drugs in type 2 diabetes25 Oct 2024—Medical News TodayBeta cells are pancreatic cells responsible for producing and releasing insulin, a hormone that helps control blood sugar levels. A recent study indicates that adults with mild type 2 diabetes might enhance their beta-cell function by adopting a low-carbohydrate diet. Experts are concerned about the low-carb diet’s sustainability but offer tips for success and alternative, evidence-based ways to improve beta-cell function. Beta cells are specialized cells in the pancreas that produce and...
- Moderate Coffee Consumption Linked to Lower Risk of Heart, Metabolic Diseases17 Sep 2024—HealthlineNew research suggests consuming three cups of coffee or 200–300 mg of caffeine daily may reduce the risk of developing cardiometabolic diseases compared to consuming little to none. Caffeine may improve cardiometabolic health by lowering inflammation, but excess caffeine is associated with negative side effects. There are other ways to support cardiometabolic health, such as focusing on exercise and improving sleep quality. Cardiometabolic multimorbidity occurs when there are two or more...
- Low-carb diets may support heart health, but how nutritious are they?13 Sep 2024—Medical News TodayDue to their restrictive nature, low-carbohydrate diets, which provide less than 130 grams of carbohydrates per day, are often viewed as nutrient-deficient diets. However, a recent study analyzed the calorie and nutrient levels provided by well-planned low- and very-low-carbohydrate diet plans, suggesting they can meet some of the nutrient needs of certain populations, particularly middle-aged women. While these diet plans can offer some benefits, they don’t seem to meet the nutrient needs of...
- An 8-week short-term vegan diet may help reduce biological age29 Jul 2024—Medical News TodayVegan, plant-based diets are rich in fiber, antioxidants, and plant compounds that support gut health, reduce inflammation, and promote healthy metabolic processes. A recent study in identical twins suggests that following a healthy vegan diet for even a short period may reduce biological age estimates. While a vegan diet may benefit the body’s biological clock in the short term, experts still recommend balanced approaches, such as the Mediterranean diet, for long-term health. A recent study...
- Listeria Outbreak Prompts Nationwide Deli Meat Recall, What to Know31 Jul 2024—HealthlineThe U.S. Department of Agriculture Food Safety and Inspection Service (FSIS) announced a recall of over 7 million pounds of Boar’s Head products on July 30 amid a Listeria outbreak. Deli meats sliced at the counter have been linked to the outbreak, which led to two deaths and 33 hospitalizations, according to the CDC. You should avoid unheated deli meat if you are pregnant, age 65 or older, or have a weakened immune system. The U.S. Department of Agriculture’s Food Safety and Inspection...