About

Fifteen+ years of clinical nutrition, translated into real life

Jessica Jantz is a Registered Dietitian Nutritionist and Certified Diabetes Care and Education Specialist who helps adults close the gap between knowing what to do and doing it.

Sustained Roots Nutrition

Sustained Roots Nutrition exists to make evidence-based nutrition usable, so the plan you leave with is one you can actually keep in an ordinary, busy week.

S · R · N

After More Than Fifteen Years In Clinical Care, Jessica Jantz Kept Meeting People Who Already Knew What To Do. What They Needed Was Help Making It Work On A Tuesday.

This Practice Was Built For That Gap: Clinical Nutrition Expertise, Delivered With Patience, Curiosity, And Strategies Shaped Around Your Real Life Rather Than An Ideal One.

Morning light across a quiet kitchen table
Jessica Jantz, RDN, CDCES

Jessica Jantz, RDN, CDCES

I am a Registered Dietitian Nutritionist and Certified Diabetes Care and Education Specialist with more than 15 years of experience helping adults navigate nutrition and chronic health conditions in a clinical setting.

Over those years, the same thing came up again and again. People arrived already knowing a great deal about nutrition. What was missing was a way to translate that knowledge into a normal week with work, family, travel, fatigue, and everything else competing for attention. Knowing what to do does not always make it easy to do.

So my work looks a little different than a handout and a goodbye. We talk about what your days actually look like, what has already been tried, and what got in the way. Then we choose a small number of changes worth testing, and adjust from there. Progress counts more than perfection here, and there is no version of this where you are shamed for being human.

Whether you are working on blood sugar, cholesterol, blood pressure, nutrition alongside a GLP-1 medication, or a more peaceful relationship with food, my role is to bring the clinical side and the practical side together in one conversation.

I am licensed to practice in Kansas, Missouri, and Illinois, and I am able to see clients located in any of these three states for virtual visits.

Registered Dietitian Nutritionist

Clinical training in nutrition therapy for adults living with chronic health conditions.

Certified Diabetes Care and Education Specialist

Specialized education in diabetes, prediabetes, and day-to-day blood sugar management.

Whole-person approach

Lifestyle, preferences, goals, and barriers all get a seat at the table when we build your plan.