Our Team

Our strength is our talent. We are a specialist team providing expertise in nutrition communications.


Andrea Mortensen

Andrea gained her unique combination of marketing and nutrition communication skills working in corporate and NGO food and nutrition marketing roles for many years. She is known for her strong issues-management skills and innovative leadership in food and nutrition programs.

As a member of the Dietitians Association of Australia and Nutrition Society of Australia, she is well connected and continues to stay on top of the latest issues.

Get to know Andrea

Andrea loves an outdoor challenge and took on the 50 km Coastrek this year. As a busy mother of two, she loves discovering great tasting, quick and healthy meal ideas.

Ashlea Vallance
Senior Account Director

Ashlea joins the Appetite team bringing a strong client service background in through-the-line marketing and activation agencies. Having worked with beverage and other FMCG clients both in Australia and Asia delivering successful campaigns for their brands over the years, Ashlea has a keen eye for detail and enjoys learning and understanding all aspects of her clients’ business to assist in achieving their business, brand or product communication goals.

Get to know Ashlea

Inheriting a love of cooking delicious meals for friends and family from her Mum, Ashlea enjoys entertaining. Growing up in the Blue Mountains has instilled a love for all things nature, and when not in the kitchen you’ll find her on the side of a Northern Beaches Rugby field cheering, or shopping of course!


Jenn Madz
Senior Account Director – Nutrition

Jenn joins the team with over 10 years’ experience in food and nutrition policy, health promotion, preventive health and public health. She brings a skill set that translates science into practical messages for every day consumers to implement. Jenn holds a passion for helping make healthy lifestyle behavior change easy in today’s day and age. As a realist who sees value in collaboration and knowledge sharing, Jenn thrives on the challenge of finding solutions for businesses wanting to make a positive and influential impact to population health.

Jenn is both a member of Dietitians Association of Australia and Sports Dietitians Australia with University qualifications in biochemistry, physiology and nutrition and dietetics.

Get to know Jenn

Jenn is a long-distance runner and cycle enthusiast with a passion for community gardens and teaching.

Tim Cassettari

Tim Cassettari
Account Manager

Tim brings over 5 years’ experience working both in, and consulting to, the food industry. He has a very diverse skillset, having worked closely across nutrition communications, food regulations and nutrition science. With a blend of great analytical skills and creativity, Tim loves the challenge of creating new nutrition science and translating the findings into simple and engaging messages that bring about behaviour change. Tim thrives in dynamic team environments, and is looking forward to co-creating smart solutions for Appetite’s clients.

Tim is an APD (Accredited Practising Dietitian) and in addition to dietetics, has university qualifications in both exercise science and psychology.

Get to know Tim

Tim is an animal lover and enjoys spending time at his family home with their hundreds of animals, which includes a llama, a fox, a miniature donkey and one of the smallest horses in Australia! He also spends his spare time meditating, reading, playing sports and exploring the outdoors, connecting with nature.

Megan Yap
Nutrition Communications Consultant

As our youngest dietitian, Megan brings fresh insights on nutrition research and how to communicate to the nutrition leaders of the future. Armed with strong analytical and research skills, Megan ensures we stay up-to-date on the relevant nutrition and health issues to inform our communication strategy and tactical solutions.

Megan is an Accredited Practising Dietitian (APD), having completed a Master of Nutrition of Dietetics at the University of Sydney. She was driven to take her nutrition skills into food industry communications after an inspiring placement with the Wellness Team at Nestle.

Get to know Megan

In addition to all things food, Megan is passionate about being active, playing basketball and ballroom dancing in her spare time. When she’s not on the courts/dance floor, she is pouring her creative energy into the latest craft project – knitting and sewing is not just for the old!

Karina Lozada

Karina Lozada
Account Executive

Karina has joined the Appetite team with 4 years experience in Digital Marketing and Advertising.
Karina is passionate about media and finding creative ways in communicating. She has a hunger for knowledge and has a keen interest in nutrition and food.

Get to know Karina

Karina loves her food and enjoys hunting the city for great eats. She loves keeping active and is fond of Boxing and Pilates. She enjoys spending her weekends outdoors or immersing herself in new art exhibits or catching a show.

Contact us

Level 1, 253 Pacific Highway
North Sydney NSW 2060

(+61 2) 9922 3556



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