Functional Dietitian for Gut Health, Liver Health, Inflammation & Digestive Disorders
Finally improve digestion, reduce bloating and food sensitivity, and feel comfortable eating again — without relying on restrictive diets or endless supplements.
I’m Kim Chan, a Holistic Registered Dietitian Nutritionist in Los Angeles specializing in SIBO, IBS, bloating, fatty liver, and inflammatory conditions. I use science-based medical nutrition therapy with a food-first, whole-person approach to help you heal at the root cause.
On Ki "Kim" Chan, MS, RDN
Stop Organizing Your Life Around Digestive Symptoms
Bloating. Food fear. Unpredictable symptoms. Exhaustion from trying supplement after supplement without lasting relief.
Digestive healing is about more than removing foods or masking symptoms.
Your gut, nervous system, digestion, metabolism, detoxification pathways, and stress response all work together — and when one system is overwhelmed, your whole body can feel it.
I help people with chronic digestive symptoms rebuild resilience so they can:
eat without fear
feel more comfortable in their body
stop obsessing over food
figure out food sensitivities
tolerate stress better
enjoy restaurants, travel, and social events again
A Food-First, Systems-Based Approach to Digestive Health
Most people are told to:
- ✕ cut out more foods
- ✕ follow restrictive diets
- ✕ take dozens of supplements
But lasting digestive relief often requires supporting the systems connected to digestion — not just chasing symptoms.
My approach combines:
- ✓ science-based medical nutrition therapy
- ✓ holistic nutrition
- ✓ nervous system support
- ✓ food-first strategies
- ✓ evidence-based herbal support when appropriate
- ✓ functional labs and bloodwork when appropriate
The goal isn’t masking symptoms.
The goal is building a resilient body that can tolerate food, stress, and life again.
I specialize in helping clients with:
- • IBS
- • SIBO
- • bloating and gas
- • food sensitivities
- • constipation, gas, and bloating
- • diarrhea
- • acid reflux
- • liver disease (MASLD)
- • inflammation
- • women’s health (PCOS, hormones)
From Surviving to Thriving
Functional Nutrition for Your Root-Cause Health
A food-first, science-based approach tailored to your unique genetics, lifestyle, and health goals.
Personalized Nutrition
Get your diet assessed and receive customized guidance for weight loss, metabolic health, or chronic disease management.
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Digestion & Gut Health
Specialized care for bloating, SIBO, GERD, IBS, IBD, and other digestive conditions using functional testing.
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Women's Health
Hormonal balance and optimization for PCOS, gestational diabetes, menopause, thyroid, and fertility support.
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Chronic Disease
Dietary intervention for diabetes, hypertension, fatty liver, cardiovascular disease, and metabolic conditions.
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Autoimmune Disease
Food-based immune support for Hashimoto's, rheumatoid arthritis, alopecia, MS, and other autoimmune conditions.
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Your Path to Better Health
Free Discovery Call
A 15-minute conversation to discuss your health goals, symptoms, and whether my approach is the right fit for you.
Personalized Assessment
A comprehensive 60-90 minute initial session covering your symptoms, history, testing, and a customized nutrition plan.
Ongoing Support
Regular follow-ups to track progress, refine protocols, and provide continuous guidance on your health journey.
My mom and I have worked with Kim for over 6 months now and she has helped us reach our health goals and beyond. It was important to us that we found a nutritionist that was knowledgeable on naturalistic methods alongside traditional and she has created such a balance between the two. We could not recommend her more and as individuals with many sensitivities and in the process of recovering from cancer we trust her entirely. Thank you so much for everything Kim!!
5-star review
I work with On ki Chan and she has been amazing. I have learned so much about nutrition and how to manage my health. She is always positive and always cheering me on. The wealth of knowlesge and information shared has been so benefitial to me finding the healthiest version of myself, I still have a ways to go and I am so grateful On Ki Chan has been a part of this journey.
5-star review
Kim has been the biggest help to me on my journey of recovery from gastritis and a slew of other difficult to manage gastro issues. She is very knowledgeable and attentive, and always looking out for my best interests. We have been working together for around 2 months and I went from feeling the worst I ever had to feeling the best I ever have. I highly recommend her service to anyone looking to heal and get your gut right!
5-star review
I absolutely love working with On Ki Chan. We never focus on what not to eat, only what to eat more of, and her guidance helps me understand what is really going on in my body.
5-star review
I have had a wonderful experience with On Ki Chan. She helped me resolve gastritis and make diet changes that reduced bloating and gut-health symptoms. Life changing.
5-star review
Kimberly Chan Jacobson is extremely knowledgeable about nutrition. She helped me with cholesterol concerns and gave practical food guidance that was realistic and effective.
5-star review
I highly recommend Kim for anyone wanting to improve health and nutrition. She took time to understand my goals and created a personalized plan that fit my life.
5-star review
Kim is an amazing nutritionist. She reviewed my bloodwork, offered personalized recommendations, and gave simple lifestyle steps that made a major difference in my health.
5-star review
I had the pleasure of working with On Ki Chan and cannot recommend her highly enough. Her knowledge and holistic approach made our sessions both practical and motivating.
5-star review
Life-changing guidance from Kim Jacobson. I came in frustrated with high blood sugar and blood pressure, and she helped me get clarity and a plan that finally worked.
5-star review
Kim has been extremely knowledgeable and helpful every step of the way. She takes time to understand all variables and make recommendations that are personalized and realistic.
5-star review
Dr. Chan is an amazing nutritionist. She helped me hit protein goals, improve gut health, and manage allergies while teaching me so much about nutrition.
5-star review
Kim Chan has been a godsend for my digestive issues. After a thorough review of my health background, she gave focused, practical steps that improved my symptoms.
5-star review
Amazing. Kim is so knowledgeable and takes the time to understand everything about your goals and what you are struggling with. Definitely see her.
5-star review
Since working with On Ki Chan at Berry Street, I have seen significant results in my PCOS journey. She is very knowledgeable and she listens carefully to my concerns.
5-star review
She is so accommodating and pays attention to every detail of your diet and explains everything scientifically on how things can affect your body. I have lost more than 80lbs after being with her. Will highly recommend Kim to be your nutritionist and make your life healthy.
5-star review
Kim has been incredibly consistent and supportive throughout my journey. She stays up to date with the latest research and gives information that’s backed by science. Her explanations are clear and practical. She’s made a big difference in how I approach food and my health. Highly recommend!
5-star review
I have been working with Kim for about a year and I couldn’t ask for a better nutritionist. Every meeting I learn something new and walk away feeling more confident in my journey to better health.
5-star review
Kim is by far the best! She listens and really considers all aspects of your life when helping you reach your goals. She’s always very positive and supportive — celebrating any and all wins. She has helped me greatly in developing healthy eating habits.
5-star review
Kim does a great job integrating my lab results into the program and bases her recommendations on actual scientific studies. I highly recommend her for anyone looking to take control of their nutrition in a thoughtful, manageable way.
5-star review
Kim didn’t just give me a plan — she gave me a new way of looking at food, my body, and myself. I no longer have a fatty liver, high blood pressure, or high cholesterol. She’s the ultimate when it comes to helping you love yourself back to health.
5-star review
Kim has been a trusted support as I work to reclaim my health. Her guidance, knowledge and expertise have helped me to better understand my nutrition needs and to have a more holistic view of how to approach my goal of optimal health.
5-star review
I have been seeing her for over a year now and learned so much — I would highly recommend her. She is really detail-oriented and makes such thoughtful suggestions and recommendations.
5-star review
On Ki is the absolute best! She acts as a detective to get to the bottom of any symptoms or health issues, helping support you in a way that is kind, caring, and action driven. Would highly recommend her!!
5-star review
Kim has helped me over the past year with my dietary and nutritional needs after recovering from SIBO. She has been an exceptional resource, a great listener, very compassionate, and helped with my healing!
5-star review
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