Theresa Tkacik, RDN

Nutrition Tools & Guidance You Can Trust

Evidence-based clinical calculators for dietitians and healthcare professionals — plus personalized guidance for anyone looking to eat better and feel great.

No fad diets. Just real guidance.

Meet Theresa

I'm a Registered Dietitian Nutritionist with 18 years of experience in clinical nutrition. My areas of focus include Medical Nutrition Therapy for hyperlipidemia/high cholesterol, hypertension, prediabetes and type 2 diabetes, obesity and overweight with comorbidities, general preventive and healthful nutrition, and patients on GLP-1 therapy needing sustainable lifestyle support.

I built these tools because I believe good nutrition information should be accessible to everyone — whether you're an ICU dietitian running complex calculations or someone just trying to make better choices at dinner tonight.

Registered Dietitian Nutritionist 18 Years Experience Heart Health Focus