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Kristine Sinner RDN

34406 N. 27th Dr. Building 6, Suite 140
Phoenix AZ , 85085
United States

"Kristine lights a path of healing with positivity, honesty and safety!"

As a young adult with Type 2 Diabetes and a history of disordered eating, I can’t recommend Kristine Sinner enough! When I first started working with her, I came in with the baggage of a thousand diets and carrying so much shame over my medical issue and “diet failures” that I could barely talk about food without crying.

What really sets Kristine apart is that she doesn’t just believe in and understand the science of nutrition and eating behaviors—she lights a path of healing with positivity, honesty and safety.

I knew instantly that I could trust Kristine, but I didn’t know, when we first started working together, that she’d give me the tools and confidence to trust myself to know how and when to eat. With her help, I have been able to release so much of the shame and discomfort that I’d been carrying with me, around food and my body, for over two decades.

I started working with Kristine less than a year ago and, with her steadfast support, I’ve found peace with food, my body and my health. I highly recommend her to anyone who is ready to move past food fears to a place of lasting health and recovery!

"I can highly recommend Kristine as one of the most capable individuals that I know in the field of dietetics."

I had the pleasure of working with Kristine Sinner for several years in both an inpatient and an outpatient specialty environment for the treatment of individuals with eating disorders. Eating disordered individuals can be difficult to help, because of their ambivalence about recovery and their fears can cause them to stubbornly cling to harmful behaviors. They are often medically compromised, so treating this population is not for the faint of heart.

Kristine has a remarkable combination of clinical knowledge, sound teaching practices, warmth, and firmness that enables her to excel at her work. She is an excellent team player while still being an independent thinker not afraid to express and defend her opinions. In addition, she has published a nutrition and meal
planning manual that is useful for anyone desiring to have a better understanding of sound nutritional principles.

So whether you are searching for someone to guide you in your recovery from anorexia, bulimia, or binge eating disorder; or simply hoping to establish a healthier lifestyle, I can highly recommend Kristine as one of the most capable individuals that I know in the field of dietetics.

"Kristine always makes the best ethical treatment recommendations for her clients."

I had the pleasure of working with Kristine Sinner at an inpatient/residential setting treating eating disorders and co-occurring disorders. Working at an inpatient setting can be challenging at times due to the severity and complexity of admitting patients. Kristine is truly extraordinary in her career. Not only was she a wonderful colleague who provided consistent communication and reliability in her treatment practices, she also provided exceptional care to clients. Kristine is consistently and effortlessly compassionate. She has a true desire to help others and get them to a place they can thrive in life and in recovery. As she transitioned to outpatient, she was one of the very few dietitians that would reach out to the inpatient level of care team in order to receive updates and coordinate treatment on mutual clients.

There has never been a time I doubted her passion and mastery in working with eating disorder clients and their loved ones!

I would highly recommend coordinating with Kristine for nutrition services in treatment of eating disorders. She is filled with kindness, honesty, empathy, knowledge, and endless insight. She always makes the best ethical treatment recommendations for her clients.

"She made me feel worthy of recovery! She gave me the motivation to continue to trust her and fight for my life every single day."

I first met Kristine Sinner in December 2012 when I was first admitted to Rosewood Ranch Centers for Eating Disorders. Although she kindly introduced herself to me as my dietitian, it wasn't until several days later that I actually had a formal session with her. I remember being so frustrated, wondering when I would get to sit down and discuss my weight and meal plan goals with my dietitian, after all, I was there for an "eating disorder". I later learned that it was the most beneficial thing for me to wait a few days until my body and brain could start functioning again, even just enough to be able to sit down and have a productive intake session with Kristine.

I heard a lot of people were intimidated by her at first because she didn't play games. She didn't speak to my eating disorder. She went deeper and found the real me and was able to talk directly to “ME”, not "ED". Granted there were many times my ED tried to argue, bargain, manipulate, and persuade her, but she was experienced and proficient in directly pointing out to me when my ED was trying to take over our sessions. Most people with eating disorders have an innate aversion to dietitians because after all they are the ones who are going to be taking control of everything the ED has been aggressively trying to hold on to. From the moment I met Kristine, I instantly knew I liked her and she was the right dietitian for me. She pushed me with a perfect blend of tough love and genuine compassion. I never felt as though I had to be ashamed with her and I was always able to be honest about my thoughts, feelings, and behaviors. The more of a relationship I began to build with her as a person, the more I began to be able to surrender all of my thoughts and fears in relation to my meal plan, weight, ED, etc…

One of Kristine's greatest strengths is her ability to listen, relate, and support her clients; she treats them all individually and I never felt like just another number. She made me feel worthy of recovery. She made me view food in a totally different perspective. She gave me the motivation to continue to trust her and fight for my life every single day. I never felt like I had to hide anything from her. Whether I was struggling or doing well, I always knew I could count on Kristine. She never judged me and she was always openly raw and directly honest with me, which is something I desperately needed when the
eating disorder voice was trying to get in the way of the progress I was making with her.

Kristine is not only an ideal dietitian, but she is also an amazing person. She has given me a completely different outlook on life. She pours her heart and soul into everything she does and I can honestly say my life has been forever changed because of the privilege I had to work with her.

"I would say that in the 17 years I’ve fought my eating disorder, Kristine is among the very best I have ever worked with!"

Kristine became an integral part of my recovery when I hit rock bottom in my eating disorder. In the two years I’ve known her she has played a compassionate role in my life and recovery. She has made a world of difference in the way I approach food and life. I’ve learned so much from her, not only about concrete facts like my dietary needs and portion sizes, but also how to love myself and others, something that I’m still practicing.

Kristine has an exceptional level of nutritional knowledge, and her daily experience in the special needs of those with eating disorders sets her apart as a dietitian.

From the very first time we met, I found something out..."Kristine is a tough cookie who truly wants her patients to WANT their recoveries and challenges us to set goals and envision how great recovery will be!"

In my case, I had a lot of crazy beliefs surrounding food and weight and the size I should be. She really worked with me through all of them. She was one busy lady handling other patients, and she never turned us away when we came to her in distress. There’s sort of a secret “language” of eating disorders, and she knows all of the vocabulary, so I couldn’t put anything past her.

I would say that in the 17 years I’ve fought my eating disorder, Kristine is among the very best I have ever worked with. Kristine is the perfect combination of compassion and toughness, because she knows that’s what it takes to break through that eating disorder mindset and get to recovery. She has helped me challenge many of the distorted beliefs and disordered behaviors that had previously been the miserable focus of every waking moment of my life. I have never felt like ‘just a client’ to her and I know without a shadow of a doubt that she really cares about the health and happiness of everyone she works with.

Being able to feel safe in putting my trust in Kristine has helped me to challenge the eating disorder voice in my head. I can’t imagine working with anyone else and will always recommend her to anyone struggling with an eating disorder.

"I came in scared and unsure and she made me feel at ease and safe."

I have had the pleasure of working with Kristine on two separate occasions while I was inpatient at Rosewood Ranch for Anorexia. I was in a place in my disease that I knew I needed help, but I had no clue how to recover, and was not even sure if I wanted to. I entered treatment unwilling to change, terrified, and in many ways, not sure I would ever get better. Kristine was not only my dietitian, she was the person who would give me the truth, no matter how difficult it was, and pressed me to not only start the journey of recovery but to push forward.

I came in scared and unsure and she made me feel at ease and safe. Her knowledge of nutrition was so deep and expansive that with every single food based lie she was able to feed me the truth. My fears of certain food soon became challenges I faced and was able to overcome, only because of her knowledge, support, and unwillingness to give up on me.

Kristine does not just work as a dietitian because it’s her job. Every every session I had with her it was fully evident it is her passion. She cares for the individual and their freedom from whatever it is about food that holds them captive. She helped me realize that I am worth being happy and free, something that I truly believe today. Even now, there is no one else in my journey who has had as great of an impact on my recovery as her. I can’t thank her enough for being an integral part of my recovery from anorexia.

"I know it’s scary to take the step, but believe me you’ll be so glad you did!"

Kristine was my angel when I most needed her. I went to the doctor for a follow-up appointment after I had been in the emergency room, scared I was having a heart attack at the age of 38. This was the 2nd time I had been in the hospital. I was not having a heart attack, but I was borderline diabetic.  I was very overweight and had done Weight Watchers at least 2 times before losing 60 lbs each time, only to gain it back and then some.  This time, my Dr. told me I had to lose weight and she wanted me to come back in a month and prove to her that I was making progress.  I had intended to do WW again when my doctor handed me Kristine’s business card. I called her from the parking lot after I left my doctor’s office. 

I was pleasantly surprised when I had my first appointment with Kristine because I was expecting to be put on a special diet and to be restricted from eating all different kinds of food.  I think I even went to DQ the night before thinking that would be my last time to ever have ice cream. (I was wrong, by the way.)
Kristine changed my world.  She didn’t put me on a restrictive diet. She taught me to listen to my body and give it what it truly wants.  She asked me to make simple changes to my habits, which I did easily and a month later when I went back to my doctor I had lost 14lbs without even realizing I was trying!!! I couldn’t believe it, but the proof was there, right in front of me.  I have since lost 100lbs and kept most of it off for 5 years now.  I have a new outlook on life and can’t thank her enough for all she has done for me.

I would and have highly recommended Kristine Sinner to my friends. I know it’s scary to take the step, but believe me you’ll be so glad you did!

"Kristine is a professional Registered Dietitian of the highest caliber!"

I worked with Kristine Sinner during her employment at a very well known Eating Disorder Facility in Arizona. I was amazed not only at her cutting edge knowledge of treating clients with eating disorders, but her compassion and the time she took with each client. It was truly a pleasure having her on my team and working closely with her.

Kristine is a professional registered dietitian of the highest caliber. She meticulously commits to providing the highest level of care to her clients. I've received many compliments from clients who benefited from the exceptional care and teaching Kristine provided them while under her care. Management and personnel in the clinical department, the dietary department, and the clinical staff (including nurses, therapists and physicians) praise her work.

Kristine is an innovative self-starter, who rarely needs supervision. She is punctual, typically exceeds expectations, and handles pressure well. Those of us that worked closely with her and saw her dedication to helping individuals with eating disorders were quite pleased with her performance in crunch time with critically ill patients. Even our referring physicians were impressed, and our client’s were ecstatic.

Kristine Sinner is an invaluable asset to any wellness, dietary program, or individual client. She is able and extremely competent in both wellness and clinical dietetics. I highly recommend her and her cutting edge philosophy in treating eating disorders.

"For the first time I could trust someone would be there unconditionally."

By the time I met Kristine, I had already been in and out of treatment for anorexia for 10 years. I had done it all including inpatient, day treatment, therapy, and diet counseling. I was desperate to get better but more than that I was desperate to find someone committed to helping me without excuses or threats. Like most patients, I knew I was sick and that is why I was there but until I met Kristine I hadn’t found anyone who believed I could get better. She knew it would be a struggle, she wanted to be there, and she proved I could trust she wouldn’t give up. Despite all odds and with numerous health issues, she refused to terminate service and instead she listened. For the first time I could trust someone would be there unconditionally.

This was a turning point for me in treatment and to this day I thank her for saving my life. This is often said loosely but in my case it is the truth. One thing few understand is that you are not your eating disorder and the symptoms are not always from your eating disorder. I am certain without Kristine I would still be stuck in a pattern of failed treatment and feelings of failure. For the first time I found someone who saw the struggle not as excuses but as a complex situation involving both medical conditions and my eating disorder. In fact, she was the first to admit my medical issues just could not be accounted for with anorexia alone. This is something I knew but was unsuccessful at convincing anyone of prior. The difference is she believed in me, left preconceived notions at the door, and refused to give up when the going got tough.

What I realized then and know to be true now about Kristine is that she does not see this as just a job but rather what she was meant to do. She has a passion for what she does and for each patient she sees. Kristine understands each patient has their own unique barriers and she learns to understand their past to make them succeed in their future.

The opportunity to work with Kristine was the best gift I could have ever received. It is rare to meet someone so invested in your recovery and willing to see beyond what rests on the surface. It is infrequent we have the opportunity to meet someone as invested in your recovery as you are but Kristine proved it is possible.

"When working alongside Kristine, I knew my clients were in competent hands and that I would have excellent collaborative information."

I was fortunate to work with Kristine Sinner in both an inpatient and outpatient setting, in Grand Rapids, MI. In every way, Kristine is a professional. She has a passion for what she does. She delivers service to those struggling with eating disorders with both compassion and the sense of urgency they require.

When working alongside Kristine, I knew my clients were in competent hands and that I would have excellent collaborative information. She offers a wealth of experience coupled with a relatable personality. If you need someone to guide you in normalizing your eating, Kristine should be your number one choice.