About Us

The No.1 Diabetes Specialist in Malaysia

Diabetes specialist Malaysia

Established in 2019, Dietitian90 Consultancy is the first dietitian consultation firm in Malaysia to offer professional nutritional guidance. As a pioneer in dietitian consultation, we offer personalized 1-1 diet counseling along with a range of services including a 3-month health program for diabetes and kidney care. Over the years, we have helped the community cultivate a healthy lifestyle by organizing a series of events such as public and corporate health talks, wellness kitchens, menu planning and online nutrition classes.

The founders of  Dietitian90 Consultancy, Ms. Mah Joh Ying and Mr. Lim Yang Xian are both qualified diabetes specialists in Malaysia, and are members of the Malaysian Dietitian Association (MDA). Both possess a Bachelor’s Degree in Health Science (Dietetics). During their years of practice as clinical dietitians at government and private hospitals prior to founding Dietitian90 Consultancy, Mah and Lim gained extensive experience in managing chronic diseases with a speciality in diabetes management.

Dietitian90 is constantly striving to bridge the gap between hospital and community dietetics care by providing the public with a platform they can rely on for professional dietetics care. With this platform, patients have easy access to professional consultation and diabetes specialists in Malaysia, as they no longer need to endure a lengthy waiting time and complicated procedures in the hospital.

Our Values

Company motto

Lifelong diabetes care with Dietitian90. We will walk the journey with you.



Our mission is to reverse blood sugar levels for every single individuals with diabetes.



Our vision is to bring hope to the lives of individuals with diabetes.


Diabetes Specialist in KL & Nationwide

Aside from Penang, we also provide online nutrition consultation services to all diabetic patients who are based in big cities like Kuala Lumpur, Selangor and many other states. So, if you can’t find a diabetes specialist in KL or Malaysia, you can always contact us to make an appointment. Our team will be more than happy to assist you with your nutritional needs.

Dietitian Lucas Lim

Mr Lucas Lim

Mr Lucas Lim is the co-founder and consultant dietitian of Dietitian90 Consultancy.

Lucas is a committed keynote speaker throughout multiple channels; corporate company events, local and international public health talks, as well as giving educational talks in higher learning institutions.

He believes that by improving the access to dietitian services in the community, this will significantly reduce diabetes complications. He only provides evidence based health information. A personalized diet plan does not mean STOP EATING but it is about eating right without compromising our current lifestyle.

Languages & Dialects: Mandarin, Bahasa Indonesia, English, Bahasa Melayu, Hokkien.

Ms Mah Joh Ying

Ms Mah Joh Ying is the co-founder and consultant dietitian of Dietitian90 Consultancy.

Joh Ying’s core expertise includes practical personalized dietary consultation for patients and clients from all walks of life in the area of disease prevention, weight management, Diabetes Mellitus (Type 1 and 2), cardiovascular diseases, kidneys impairment, gastrointestinal tract diseases, cancer prevention and management.

She believes in providing the public with the right information, proper knowledge and guidance about health and diet. Thus, reduce the risk of getting diseases especially during the earlier stage.

Languages & Dialects: Mandarin, Bahasa Indonesia, English, Bahasa Melayu, Hokkien.

Dietitian Joh YIng

Mr Lucas Lim

Cancellation and Refund Policy

  1. Dietitian90 Consultancy will ONLY give refunds to online nutrition course fees under the following circumstance:  – Serious illness. We will require you to produce a medical certificate as evidence. 
  2. Where online classes are cancelled by the Dietitian90 we will provide refunds except where classes are cancelled due to circumstances beyond our control (force majeure). In these cases, we will make every effort to provide alternative arrangements including make-up classes. Only where no alternative is made available will we provide refunds. 
  3. All requests for cancellation and refunds must reach us the day before the start of the class. No refunds or credits will be granted once the class has started. Approved refunds will take a minimum of 1 week to process.