Amy Liu | The University of Auckland (original) (raw)
Amy is the Practice Supervisor Diabetes Dietitian at Auckland Diabetes Centre, ADHB. She has recently completed her PhD on the International PREVIEW study looking at the Prevention of Diabetes in the New Zealand Cohort over 2 years.
Address: New Zealand
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Papers by Amy Liu
Obesity Research & Clinical Practice, 2013
the control (−0.8 kg; p < 0.001). Additionally, both intervention groups significantly improve... more the control (−0.8 kg; p < 0.001). Additionally, both intervention groups significantly improved percent weight loss, BMI, waist circumference, and participants achieving 5% weight loss (all p < 0.001). Conclusion: OM have significantly better recruitment and retention rates than YM. The intervention medium affects intervention success for YM rather than OM, with YM suited to online approaches rather than paper-based. Efforts are required to better develop interventions that are specifically tailored, to improve recruitment, retention and engagement in YM.
Advances in Nutrition, 2015
Current Obesity Reports, 2013
Nutrition & Dietetics, 2014
Frontiers in Nutrition, 2021
Background: Individuals with pre-diabetes are commonly overweight and benefit from dietary and ph... more Background: Individuals with pre-diabetes are commonly overweight and benefit from dietary and physical activity strategies aimed at decreasing body weight and hyperglycemia. Early insulin resistance can be estimated via the triglyceride glucose index {TyG = Ln [TG (mg/dl) × fasting plasma glucose (FPG) (mg/dl)/2]} and the hypertriglyceridemic-high waist phenotype (TyG-waist), based on TyG x waist circumference (WC) measurements. Both indices may be useful for implementing personalized metabolic management. In this secondary analysis of a randomized controlled trial (RCT), we aimed to determine whether the differences in baseline TyG values and TyG-waist phenotype predicted individual responses to type-2 diabetes (T2D) prevention programs.Methods: The present post-hoc analyses were conducted within the Prevention of Diabetes through Lifestyle intervention and population studies in Europe and around the world (PREVIEW) study completers (n = 899), a multi-center RCT conducted in eight...
Aim: The objective of this study was to assist individuals with type 2 diabetes (T2D) better mana... more Aim: The objective of this study was to assist individuals with type 2 diabetes (T2D) better manage blood glucose control using food. Given that white rice is a commonly consumed staple food for Asian cultures, the aim of this study was to develop a nutritious and easy-to-prepare alternative meal using culturally tailored ingredients.
Methods: A ‘rice mix’ comprising 60% white rice and 40% a mix of legumes, nuts and seeds was developed. Eighty-one participants of Asian ethnicity and with T2D were screened with 13 subjects randomised and given the rice mix or white rice (control) as an evening meal. Blood glucose responses were compared between meals and to the American Diabetes Association guidelines together with responses to satiety and desire-to-eat questions.
Results: Over a 3-hour period following consumption, blood glucose concentrations were 21% (95% CI: 6, 36) lower for the rice mix compared with white rice (P < 0.001). The mean length of time that blood glucose exceeded 10 mmol/L was 30 minutes (95% CI: 6, 54) less; and the maximum glycaemic increment above 10 mmol/L was 1.4 mmol/L (95% CI: 0.3, 2.5) less; for the rice mix compared with the white rice. There was no effect on appetite as satiety was not different between meals, although there was a lesser desire to eat fatty foods after consuming the rice mix (P = 0.02).
Conclusions: The rice mix as an alternative to white rice could be a practical self-help approach to improve blood glucose control in people with T2D. Using education and culturally tailored ingredients may help overcome barriers to dietary change.
The origins of the New Zealand population are highly diverse. New Zealand Māori are the indigenou... more The origins of the New Zealand population are highly diverse. New Zealand Māori are the indigenous peoples with a population of approximately half a million (~12 %), with the remainder comprising predominantly European/Caucasian (~50 %), Pacific Island Polynesian (~28 %) and Asian (~10 %) peoples. With a prevalence of overweight and obesity of 65%for adults >15 years of age, of which 28 % have a BMI>30 kg/m2, New Zealand has been ranked third highest in a global OECD obesity review, behind only the US and Mexico. Levels of childhood obesity are also significant, with 31 % of New Zealand’s children either overweight or obese. Few gender differences exist, but there are significant differences between ethnicities (Asian>European Caucasian>Māori>Pacific) with disproportionate representation by those poorer and with less formal education. A high 62 % of Pacifika are obese and virtually the entire adult population has a BMI >25 kg/m2. Public health measures to limit progressive increases in weight are unsuccessful, and clearly should be priority for government focused on disease prevention.
Obesity Research & Clinical Practice, 2013
the control (−0.8 kg; p < 0.001). Additionally, both intervention groups significantly improve... more the control (−0.8 kg; p < 0.001). Additionally, both intervention groups significantly improved percent weight loss, BMI, waist circumference, and participants achieving 5% weight loss (all p < 0.001). Conclusion: OM have significantly better recruitment and retention rates than YM. The intervention medium affects intervention success for YM rather than OM, with YM suited to online approaches rather than paper-based. Efforts are required to better develop interventions that are specifically tailored, to improve recruitment, retention and engagement in YM.
Advances in Nutrition, 2015
Current Obesity Reports, 2013
Nutrition & Dietetics, 2014
Frontiers in Nutrition, 2021
Background: Individuals with pre-diabetes are commonly overweight and benefit from dietary and ph... more Background: Individuals with pre-diabetes are commonly overweight and benefit from dietary and physical activity strategies aimed at decreasing body weight and hyperglycemia. Early insulin resistance can be estimated via the triglyceride glucose index {TyG = Ln [TG (mg/dl) × fasting plasma glucose (FPG) (mg/dl)/2]} and the hypertriglyceridemic-high waist phenotype (TyG-waist), based on TyG x waist circumference (WC) measurements. Both indices may be useful for implementing personalized metabolic management. In this secondary analysis of a randomized controlled trial (RCT), we aimed to determine whether the differences in baseline TyG values and TyG-waist phenotype predicted individual responses to type-2 diabetes (T2D) prevention programs.Methods: The present post-hoc analyses were conducted within the Prevention of Diabetes through Lifestyle intervention and population studies in Europe and around the world (PREVIEW) study completers (n = 899), a multi-center RCT conducted in eight...
Aim: The objective of this study was to assist individuals with type 2 diabetes (T2D) better mana... more Aim: The objective of this study was to assist individuals with type 2 diabetes (T2D) better manage blood glucose control using food. Given that white rice is a commonly consumed staple food for Asian cultures, the aim of this study was to develop a nutritious and easy-to-prepare alternative meal using culturally tailored ingredients.
Methods: A ‘rice mix’ comprising 60% white rice and 40% a mix of legumes, nuts and seeds was developed. Eighty-one participants of Asian ethnicity and with T2D were screened with 13 subjects randomised and given the rice mix or white rice (control) as an evening meal. Blood glucose responses were compared between meals and to the American Diabetes Association guidelines together with responses to satiety and desire-to-eat questions.
Results: Over a 3-hour period following consumption, blood glucose concentrations were 21% (95% CI: 6, 36) lower for the rice mix compared with white rice (P < 0.001). The mean length of time that blood glucose exceeded 10 mmol/L was 30 minutes (95% CI: 6, 54) less; and the maximum glycaemic increment above 10 mmol/L was 1.4 mmol/L (95% CI: 0.3, 2.5) less; for the rice mix compared with the white rice. There was no effect on appetite as satiety was not different between meals, although there was a lesser desire to eat fatty foods after consuming the rice mix (P = 0.02).
Conclusions: The rice mix as an alternative to white rice could be a practical self-help approach to improve blood glucose control in people with T2D. Using education and culturally tailored ingredients may help overcome barriers to dietary change.
The origins of the New Zealand population are highly diverse. New Zealand Māori are the indigenou... more The origins of the New Zealand population are highly diverse. New Zealand Māori are the indigenous peoples with a population of approximately half a million (~12 %), with the remainder comprising predominantly European/Caucasian (~50 %), Pacific Island Polynesian (~28 %) and Asian (~10 %) peoples. With a prevalence of overweight and obesity of 65%for adults >15 years of age, of which 28 % have a BMI>30 kg/m2, New Zealand has been ranked third highest in a global OECD obesity review, behind only the US and Mexico. Levels of childhood obesity are also significant, with 31 % of New Zealand’s children either overweight or obese. Few gender differences exist, but there are significant differences between ethnicities (Asian>European Caucasian>Māori>Pacific) with disproportionate representation by those poorer and with less formal education. A high 62 % of Pacifika are obese and virtually the entire adult population has a BMI >25 kg/m2. Public health measures to limit progressive increases in weight are unsuccessful, and clearly should be priority for government focused on disease prevention.