Dorothy M. Shirnyl, RND

Registered Nutritionist

Food & Supplements
Nutrition
Health & Fitness
Diet
Public Health Nutrition
Food Safety
Weight Loss
Healthy Eating
Meal Planning
Diet Comparisons

Dorothy M. Shirnyl, RND, is a licensed Registered Nutritionist-Dietitian and health writer with expertise in public health nutrition. She holds a Bachelor of Science in Nutrition and Dietetics and a Master of Public Health (MPH) with a concentration in Public Health Nutrition from Silliman University, one of the Philippines' top universities. She is licensed by the Professional Regulation Commission (PRC) of the Philippines — a government-regulated credential requiring a bachelor's degree and national licensure exam, comparable to the RD credential in the United States.

Dorothy brings diverse clinical and educational experience to her writing. She served as an Instructor at Negros Oriental State University, where she taught food technology students courses in food safety, sanitation, hygiene, and food service. She has also worked as a Food Safety Officer for YLO Corporation, overseeing food safety protocols across multiple restaurant chains, and as a clinical Nutritionist-Dietitian.

Her evidence-based nutrition and wellness content has been published on Clean Eatz Kitchen, Daily Healthy Body, and IVL Health News.

Foods That Balance Hormones: What to Eat and Avoid

Dorothy M. Shirnyl, RND 13 minute read

Metformin for Weight Loss: Does It Work?

Dorothy M. Shirnyl, RND 9 minute read

Healthy Lifestyle Articles | Weight Loss Articles & Guides

Low FODMAP Diet Guide: 3-Phase Plan for IBS Relief

Dorothy M. Shirnyl, RND 18 minute read

Healthy Recipes & Meal Ideas | Nutrition Articles & Guides

Is Oatmeal Good for Weight Loss? Portions, Protein & Best Toppings

Dorothy M. Shirnyl, RND 25 minute read

Healthy Lifestyle Articles | Healthy Recipes & Meal Ideas | Meal Prep Guides & Meal Plan Ideas | Nutrition Articles & Guides | Weight Loss Articles & Guides

Is Chick-fil-A Healthy? The Complete Truth About Nutrition, Ingredients & Smart Menu Choices (2026)

Dorothy M. Shirnyl, RND 9 minute read

Healthy Lifestyle Articles | Nutrition Articles & Guides | Weight Loss Articles & Guides

How Much Water Should You Drink a Day?

Dorothy M. Shirnyl, RND 11 minute read

Healthy Lifestyle Articles | Nutrition Articles & Guides

Carb Cycling Diet: A Complete Guide to Better Results

Dorothy M. Shirnyl, RND 10 minute read

Healthy Lifestyle Articles | Nutrition Articles & Guides | Weight Loss Articles & Guides

Beginner's Guide to Macros: Balance Protein, Carbs & Fats

Dorothy M. Shirnyl, RND 15 minute read

Healthy Lifestyle Articles | Healthy Recipes & Meal Ideas | Nutrition Articles & Guides

Are Strawberries Good for Weight Loss?

Dorothy M. Shirnyl, RND 6 minute read

Nutrition Articles & Guides | Weight Loss Articles & Guides

Are Protein Shakes Good for Weight Loss?

Dorothy M. Shirnyl, RND 9 minute read

Healthy Lifestyle Articles | Healthy Recipes & Meal Ideas | Nutrition Articles & Guides | Weight Loss Articles & Guides

How to Enjoy Holiday Meals Without Derailing Your Goals

Dorothy M. Shirnyl, RND 8 minute read

Healthy Lifestyle Articles | Meal Prep Guides & Meal Plan Ideas | Nutrition Articles & Guides | Weight Loss Articles & Guides

Are Blueberries Good for Weight Loss? The Complete Guide to This Tiny Superfruit

Dorothy M. Shirnyl, RND 17 minute read

Healthy Lifestyle Articles | Nutrition Articles & Guides | Weight Loss Articles & Guides

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