Meet the Team


Kari Collett, RDN, LDN, CLT
Owner/Licensed Dietitian 

Kari’s enthusiasm about health and nutrition is incredible! Once you meet her, you’ll understand more about her deep-rooted passion for the power of food and nutrients. This passion started over a decade ago when Kari hit a major life roadblock. Instead of giving up, Kari took up marathon training. All that running made her hungry! Having to eat more pushed her into looking more closely at how food affected running performance. Not only did she discover that eating the right foods could improve her running time, but they also shortened her recovery time. Fascinated by her experiments and research, she found herself diving deeper into other aspects of food: agriculture, production, processing, and more. Before she knew it, she was in love! And pursuing a new career.

Today, Kari is a Registered and Licensed Dietitian specializing in functional nutrition. With additional training specific to food sensitivities, she is also a Certified LEAP Therapist. Coupling education from the College of St. Benedict and Iowa State University with life experiences, Kari helps people reach optimal states of health and function. She is diverse in the population she serves in that she provides individualized nutrition services for those with food sensitivities, chronic pain and disease, weight loss goals, athletic performance goals, and more using whole food therapies, supplements, and mind-body exercises for the health and healing of clients.

Kari is currently partaking in a higher-level functional nutrition training course that will eventually have her certified in functional medicine nutrition. Every new thing she learns and applies to her patient’s customized programs improve their outcomes!

Kari’s passion is inspiring! You’ll love working with her, and you’ll love the outcomes you obtain through your unique nutrition plan.

  • Listen to an interview with Kari at WJON Health Talk about the benefits of fat on health matters. Click here.
  • Listen to an interview with Kari at WJON Health Talk about protein. Click here.
  • Got Raw Milk – Study and Results Click here.
Angie Stang
Administrative Assistant

Angie Stang is the Administrative Assistant for A to Zinc Nutrition. She has many years of business experience from managing two at-home small businesses, many hours of volunteering, and overseeing her household. Angie has rejoined the workforce after raising three children.

Angie enjoys spending time with her husband and three kids. She especially enjoys attending performing arts events such as plays, the symphony, ballet, and music concerts. Angie and her family enjoy skiing, fishing, and hanging out with friends.  She is an avid gardener and has grown many types of fruits, vegetables, and herbs, many of which make their way to her basement for the winter. She has recently begun researching local foraging options and will walk her property looking for these healthy options. She has always been interested in nutrition and is eager to help people with their nutrition goals.

Nutrition Health Check

Take a nutrition health check and see your results.

Jean’s LEAP Story: Knee Replacement Not Needed!

My Past I’ve worked hard all my life growing up on a farm and playing sports in school, and because of it, my knees took a beating. Over the past several years, my knees began to feel swollen and painful. In more recent years, my knees were in pain all the time. I exercised daily, but it was difficult. I

Bone Density Loss Leads to Osteoporosis

Get started early with bone health interventions.

Know Your Cooking Oils

Know Your Cooking Oils Get the best health, flavor, and cooking benefits from the oils you use. Kari Collett, RDN, LDN, CLT with A to Zinc Nutrition, LLC On any given day in the “what’s best” amidst the media stream, you might hear about an oil that has newly discovered health properties or newly published research that makes it rise

5 Minutes Can Make a Big Difference: Best Cooking Methods for Preserving Nutrients

Kari Collett, RDN, LDN, CLT with A to Zinc Nutrition, LLC