Summer, and holidays, are a time for treats. We all love indulging in ice-creams, lemonades, and BBQs but sometimes it's good to seek out a healthy alternative to your summertime snacks.

SuperValu is on a mission to get the nation cooking. So to kick off the summer the right way, they brought together an extraordinary group of chefs and nutritionists for exciting panel discussions and cookery demos.

We spoke to Nutrition & Dietetics Specialist Mary McCreery to get some healthy tips for the holidays.

Nutritionist Mary McCreery
Nutritionist Mary McCreery

What's your top holiday food destination and why?
My top holiday food destination is Spain because when you're eating out in Spain you have the choice of the most magnificent fish, that is usually just cooked in a little bit of olive oil and garlic.

You get your salad on the side, you get your lovely crusty bread, you get your lovely glass of red wine and you have magnificent fruits. So that would be my top holiday destination for food.

What are some healthy foods we can make for our summer BBQs?
The biggest thing I would say about summer barbeques is to watch your portion sizes. If you're having your dinner in the winter you will either have meat or fish or chicken or a burger, whereas if you're having a barbeque you tend to have a burger and a piece of steak and a bit of chicken and a spare rib.

Rather than trying to choose a different type of food for a barbeque I would say just watch your portions.

So say at one barbeque you'd have a steak, at another barbeque you'd have a burger, at another barbeque you'd have some fish or some sausages even. But it's the quantity, it's the biggest thing I would say.

The thing I like the most on barbeques is baked bananas. So if you threw a banana on at the end of you've finished cooking everything else - and the baked bananas on a barbeque are perfect as a dessert. 

What's your top sugar-free treat for summer - to stop kids from eating ice-cream and sugar all summer?
I wouldn't be a great fan of trying to pick one ingredient out of any type of food and to say you shouldn't eat this and you shouldn't eat that.

Really treats for everybody should be limited to one a day. 

I think the best guidelines for anybody would be if you're allowing your child treats, they're just having one a day, if you're allowing yourself treats, it should be one a day.

But in between when you're going out - I mean things like sugar-free drinks and sugar-free squashes or fresh fruit in the car - don't be packing the crisps and the nuts and all the savory snacks that people tend to throw in the back of the car.

I would just go for fruit, sugar-free drinks and let them have one treat a day. 

As a Clinic Nutritionist at Blackrock, what are your top tips for fighting obesity in both adults and children?
Watch your portion sizes. That would be the main thing I would advise. Everybody who has a weight problem eats too much and they eat too much food.

They're not eating too much of one food or too much of another food - they're eating too much food.

So for children you need to reduce their portion sizes at their meal times and for adults you need to reduce your own portion sizes as well and cut the treats down to no more than once a day.