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The Founders

Becky Photo

Becky Siame ~ Founder/Managing Director

At my biggest, I topped the scale at 334lbs.  However with the assistance of Weight Loss Surgery (Lap-band) I have lost 105lbs over a period of 2 years.  The Sizexchange story for me began when I realised the need for a system that allowed dieters and families to transition through sizes easily and affordably...thats how the idea for SizeXchange was born.  Aside from my weight-loss story, I am a single mom with two gorgeous toddlers, currently living in the stunning town of Nelson, New Zealand.  This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Sandi Photo

Sandi Corbishley ~ Managing Director

Hi there, I'm a true blue Ozzie living in New Zealand with my 3 boys and have done so for nearly 6 years. Since making the big move I have lived in beautiful Hanmer Springs, New Zealand where my journey of health and fitness begins. The incredible outdoor lifestyle Hanmer offers has been too enticing to resist therefore I took the opportunity to make the most of it and use it to help others on their weight loss journey. My passion is to see people enjoying life and living it to their healthiest and fullest hence my enthusiasm to be a part of sizexchange. This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Our Experts

Phyllis Briggs ~ SizeXchange Ambassador

Our Ambassador Phyllis Briggs is best known for her amazing weight loss journey where she lost over 33kilos.

Phyllis has inspired over 5000 plus women from all over the globe through sharing her story and now you too can view it at www.shesucceeds.com.

Lea Stening - Resident Dietitian

Lea Stening ~ Resident Dietitian

Lea is our registered dietician who has specailized in paediatric and family nutrition for over 30 years. Lea offers expert advise to those with problems such as weight control, diabetes, conorary heart diease, gastro-intestinal upsets, allergies, intolerances and other health issues. To view Lea's profile further you can visit her site at Lea Stening Health.

Helen Robinett ~ Resident Stylist

Helen is our passionate, Australian-based image & style consultant with a major mission in life: to inspire people that It does not matter what shape or size you are – you are fabulous just as you are.  She owns and operates Image Quest - a complete personal styling service.

Kellee Waters - Weight-Loss Coach

Kellee Waters ~ Resident WeightLoss Coach

Kellee is our registered psychologist/coach. Since starting her business Mind and Body Power in 2003, Kellee has helped to develop their own weapon for success against yo-yo dieting, emotional overeating, weight gain and obesity. To view Kellee's profile further you can visit her site at Mind & Body Power.

Cher Hunter - Personal Trainer

Cher Hunter ~ Resident Personal Trainer

Cher is our resident personal trainer who has gone through her own weight loss journey, loosing 37kilos. Cher provides tools for people to monitor their weight loss through calories they eat and burn. You can view Cher's profile further by visiting her website, Somebody Weigh Better.