After Hours
13 74 25
Local Pharmacies

130 Avoca Street Randwick NSW 2031
Tel: 02 9399 3335 - Fax: 02 9399 9778

avocastreet.com - asmc.net.au - randwickhealth.com - randwickgp.com - familydoctor.sydney

General Practitioners

Dr. Priscilla Wong

University of NSW
Interests: Family medicine, Aged care, Dermatology
Languages: Cantonese

2009 Fellow of the Royal Australian College of General Practitioners
2007 Diploma in Child Health (Westmead Hospital)
2007 Certificate in Sexual Health and Family Planning (FPA)
2010 Diploma in Practical Dermatology (With Distinction) (Cardiff University)
2012 Graduate Certificate in Mental Health (Distinction Av.) (NSW Institute of Psychiatry)
2012 - 2015 Examiner RACGP Fellowship Examinations
2019 Certified Health Informatician Australia
2019 Fellow Australian Society of Lifestyle Medicine
2010 - present Accredited Antenatal Shared Care Provider (Royal Hospital for Women)

Rostered hours
Tue9 AM - 6 PM
Wed9 AM - 3 PM
Thu9 AM - 6 PM
Fri9 AM - 3 PM
Sat *9 AM - 12 PM

* Doctors are on rotating roster for Saturdays. Please call and check who is on duty.

Notices from Dr. Priscilla Wong :

Dr Priscilla will be away
20/12/2019 - 09/01/2020

Dr. Angela

Dr. Kien

Dr. Mandy

Request An Appointment Online

Doctors' Roster
Mon8 AM - 12 PM 8 AM - 6 PM10 AM - 5 PM
Tue8 AM - 12 PM9 AM - 6 PM8 AM - 6 PM 
Wed8 AM - 12 PM9 AM - 3 PM8 AM - 6 PM 
Thu8 AM - 12 PM9 AM - 6 PM 10 AM - 5 PM
Fri8 AM - 12 PM9 AM - 3 PM8 AM - 3 PM 

Saturday Roster 9AM - 12PM

General Information

Iodine Facts

Iodine is an essential trace element and an integral component of thyroid hormones. Thyroid hormones are required for normal growth and development of tissues and maturation of our bodies. Iodine deficiency is the most common preventable cause of mental retardation in the world; obtaining iodine through the food supply is therefore paramount. Iodine deficiency has re-emerged in Australia with the introduction of new practices of sanitization in the dairy industry and a decline in use and consumption of iodised salt.

Iodine Deficiency
Iodine Deficiency Disorders (IDD) refer to a number of disorders whereby iodine deficiency has an effect on growth and development. Such IDD include:

Goiter: Very low levels of iodine intake (50g/day) are associated with goiter, which presents as an enlarged thyroid gland. Other symptoms include dry skin, fatigue and hair loss.

Cretinism: Severe iodine deficiency (30g/day) during pregnancy can lead to cretinism in infants. This syndrome is characterized by mental deficiency, Spastic Diplegia, deaf mutism and shortened stature.

Food sources of Iodine
Sources of iodine include seafood, iodised table salt and bread.

The iodine content of plants and vegetables is dependent on the environment and soil in which they are grown.

Marine sources: marine foods, including regular fish (e.g. tinned salmon) and shell fish (e.g. oysters) are the best sources of iodine.

Dairy: historically, dairy foods contained high levels of iodine due to the sanitisers used in dairy processing which contained iodophors. These sanitisation techniques have been phased out of the processes now involved in sterilisation of dairy equipment. As a result, dairy today has reduced levels of iodine and is a less reliable iodine source.

Salt: In Australia, iodide fortified salt contains high levels of iodine. However, use of iodised salt has been reduced due to increased awareness of the association between high salt consumption and hypertension.

Bread: As of October 2009, Australian bakers are required to replace regular salt with iodised salt in the baking of bread. Prepackaged breads must list iodised salt as an ingredient on product labels, however, unpackaged bread does not require such labelling. Bakers are required to provide information regarding the use of iodised salt to customers on request.

Supplementation: Pregnant and breast feeding women may require iodine supplementation, though consultation with a doctor is recommended before commencing a supplementation program.

Table 1. Iodine content of common foods:
FoodIodine content (g per 100g)
Sushi (containing seaweed)92
Tinned salmon60
Bread (made with iodised salt)46
Steamed snapper40
Cheddar cheese23
Ice cream21
Chocolate milk20
Flavoured Yoghurt16
Regular milk13
Tinned tuna10
Bread (without iodised salt)3
Beef, pork, lamb<1.5
Tap water (varies depending on site)0.5-20.0
Apples, oranges, grapes, bananas<0.5

Table 2: Iodine recommendations in Australia and New Zealand
Age and GenderRecommended daily intake
1-8yrs boys and girls90g/day
9-13yrs boys and girls120 g/day
14-18yrs boys and girls150g/day
19->70yrs men150g/day
19->70yrs women150g/day
Lactation270 g/day

Source : nutritionaustralia.org

The information in the above were collected from the internet,
either from government websites or from reasonably reliable health information sources.
They are for general information only and should not replace the need of seeking medical care during illnesses.

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