Hong Kong Preventive Medicine Association Ltd.

Hong Kong Preventive Medicine Association Ltd.



New treatment and medical technology are always the outcome of efforts, repeated experiments and failure of our ancestors. Scientific advancement is built on countless people who devote their time and effort behind endless trials. We are committed to promote the importance of preventive medicine, and also hope to know more about the outcome of new treatments through supporting researches.


Promoting research results to the public helps to enhance health awareness and a culture of concerning about personal health.

Present Works

Allergy Questionnaire in

Hong Kong

(February 2015 - present)


By phone interview, we track the effectiveness of using food avoidance based on allergy testing to improve allergic symptoms of dieting and symptoms within three months.

Joint Research of Chinese University of Hong Kong and Dermatology Department of Shenzhen Children's Hospital

(June 2014 - present)


Researchers from Shenzhen Children's Hospital work under the supervision of Chief Dermatologist in Children's Hospital, Professor Ellis Hon and Dr. Sophie Leung from CUHK. Researchers adopt the ELISA IgG test on 96 kinds of foods, guide the patient to avoid eating allergens. Patients are asked to fill in dietary record regularly. Research is still in progress, according to the researchers mid-term meetings, and the outcome of food avoidance has been good so far.

Completed Works

Chinese University of Hong Kong food allergens and Eczema Follow-up Study

(September-October 2014)


1.5 years after the last research on food allergens and eczema, the researchers want to know whether the participants have continued dieting, as their most updated perception on food avoidance and allergies.


84% of participants in the previous studies, have still continued avoid to eat milk, eggs and wheat. There are four of them have completely avoid milk, eggs and wheat; fifteen of them dieting up 70-90%, while two of them dieting up to 60%. The reason that they continue food avoidance is, through dieting, they obviously feel improvement of symptoms like itching, scratching, swelling and bleeding. Besides medication has been reduced and sleep quality has also been improved. These patients avoid the food they eat everyday beside on the IgG result, and switch to consume whole grains, low-fat and plant-based diet. Of which three patients follow this new eating principle strictly, satisfactory results have been seen, their skin condition is better than ever.


The study concluded that, besides the routine use of emollients and drugs, avoiding to consume food containing allergens for the treatment of chronic eczema may be a better approach. Determining food allergens by measuring IgG in patients with eczema may play a role. In the dietary treatment, the compliance of dieting is an important factor. Doctors need to guide patients to quit eating allergens, and have to instruct patients systematically for nutritionally balanced diet.


Results published: 2014 Fourth Symposium on Hong Kong and Guangdong, Shanghai and Chongqing Pediatrics.

Food Allergens and Eczema Research with Chinese University of Hong Kong

(April 2012-October 2013)


Professor Ellis Hon (Professor, Department of Paediatrics, The Chinese University of Hong Kong) and Dr. Sophie Leung (Pediatric specialist), recruited 31 patients from Shatin pediatric clinic in Prince of Wales Hospital. These patients have suffered from chronic eczema since infancy, and before this study, they have received different treatments. They took an IgG blood test, using immunosorbent assay (ELISA). They were asked to quit the diet of milk, eggs and wheat and other food with reactions based on the test results. Each patient received detailed guidelines to guide them on how to implement a healthy diet with plant-based foods. IgG positive reaction to milk, eggs and wheat are the most significant: 80.7%, 84.6% and 80.7%. The IgE positive reaction of these three foods are not significant, only two eggs positive are found.


When the study participants quit eating allergens, and switched to eating a plant based diet, the participants has self-evaluated that their eczema symptoms have improved by 70-74%. In addition to the improvement on eczema, some participants noted that the change in diet has improved their immunity; they have noticed that the number of colds and number of visits to doctors has been greatly redcued. The study concluded that, milk, eggs and wheat are the allergens many eczema patients reactive to, the reactivity is showed as IgG instead of IgE. Excluding these foods from diet and choose a low-fat, whole grains, plant based diet appears to improve symptoms associated with eczema, IgG test worth further exploration.


During the studies, the research team has organized a Christmas party, professors and doctors are involved in this party and patients are allowed to exchange ideas on food avoidance.


Results published: "Food can change health?" Seminar in 2013, jointly organized by Chinese University of Hong Kong and the Hong Kong Polytechnic University.


Meanwhile, the vice president of the Hong Kong Nutrition Association Mr. GordonCheung has studied four study participants closely. These patients avoid eating allergens food ad switch to a plant-based diet. Mr Cheung review their diet, height and weight. It was found that the participants are not lack of dietary calories or 

protein. Three of them have high calories intake much higher than RNI, and all of them have much higher protein intake than the RNI. The intake of other nutrients are sufficient too, just calcium intake is lower than RNI, but comparable with the Local calcium intake. The growth index of all participants are within the normal range.


Results published: 2"Food can change health?" Seminar in 2013, jointly organized byChinese University of Hong Kong and the Hong Kong Polytechnic University.