The Best Kids Food Marketing Campaign was awarded to Sanitarium for their Weet-Bix Kids TRYathlon ads.
Munch director Anna Bordignon said the campaign encouraged kids to eat a healthy breakfast and compete in local triathlons.
"The Weet-Bix Kids TRYathlon inspires children to get moving in a friendly and supportive environment where the emphasis is on enjoying the experience as part of an active lifestyle rather than competition."
A voter commented: "Weet-Bix has always been in our lives. Weet-Bix no additives and no sugar. Actually a reasonably healthy product, true to the ad".
Another said: "A real Kiwi kids campaign. Promotes exercise for general well being. They put their money up front to support what has become great local annual event for our families'".
McDonalds was the recipient of the Worst Kids Food Marketing Campaign for "their numerous Happy Meal campaigns that link rewarding a child with a toy and unhealthy food choices," Ms Bordignon said.
"It is smoke and mirrors advertising as they promote (so called) fun healthy meals with a free toy to kids."
"Nothing happy about McDonalds for kids, because it encourages children to make unhealthy food choices so they can get the toys," a voter said.
A McDonalds spokeswoman said while the company had not had any communication from the award's organisers, they were happy to comment as they were proud of the product.
"Over the last 10 years McDonald's has worked hard to evolve Happy Meals to the point where now, over 50 per cent of meals sold include a healthier choice such as a grilled chicken snack wrap or bag of apple slices."
The Munch Awards were aimed to raise awareness of which foods were good and bad for children, the techniques used to promote unhealthy food, and to recognise advertisements which promoted healthy food in a fun and appealing way, Ms Bordignon said.
The best and the worst:
Best Kids Food Product: All Good Bananas Runner-up: Only Organic baby food
Worst Kids Food Product: Coca Cola Runner-up: Red Bull and V
Best Kids Food Marketing Campaign: Weet-Bix Kids TRYathlon Runner-up: All Good Bananas