"I will be giving them a ladder of carbohydrates. At the bottom is sugars and at the top is wholegrains and vegetables."
Mr Warren said some of the advice he'll be giving would be teenage-specific but the majority of it would be advice for people of all ages.
"It's empowering people to eat right for their bodies. It's really for anyone that wants to be inspired to live healthier."
Mr Warren said he had quite a lot of people who followed his work in Tauranga and he was coming back to service these people.
He said the seminar would look at how to reverse the parameters of modern diseases through nutrition.
More than 35,000 people have attended Mr Warren's seminars and he has been featured on 60 Minutes, Good Morning and in a TedX Talk in 2014.
-Ben Warren will be speaking at a fundraising seminar at Otumoetai College at 7pm tonight and again tomorrow at a public seminar. Tickets cost $20.