Antioxidants – will we live longer if we eat them?

Antioxidants are compounds in food that research shows can play a role in preventing cancer, cardiovascular disease, eye disease and slowing down ageing. Little powerhouses indeed.

Supplement and skincare companies know that youthfulness and staying young is right at the top of our wish lists don’t they? There is every powder and potion known to man, designed to smooth our skin, get rid of wrinkles and stop the ageing process on retail shelves all over the world.

A 2012 meta-analyis of over 70 clinical trials found antioxidant supplements are ineffective or even detrimental to health. The high doses of antioxidants found in supplements can lead to severe health problems.

Just Imagine Being Able to Get Youthful Benefits From the Food You Eat, Instead of Spending Money and Time on False Promises

Firstly, lets look at the science behind these little beauties.  Antioxidants exert their protective effects by preventing damage to body cells and tissues caused by free radicals and singlet oxygen. They sound very impressive but the easier way of remembering what antioxidants do is to picture the 1980’s Pac-Man game where the aim was to get the Pac-Man to gobble as many ‘ghosts’ as possible.

Pac-Man is the antioxidant and the ‘ghosts’ are the free radicals. Thanks to the ‘Pixels’ movie starring Adam Sandler released a couple of years ago, everyone remembers the Pac-Man.

There you have the essential role of antioxidants.

Now About Those Free Radicals

They are produced in the presence of:

  • Cigarette smoke
  • Environmental pollutants
  • Ultra-violet light
  • Radiation
  • Carcinogens
  • High PUFA diet
  • Exercise
  • Inflammation

We need those antioxidants to help mop up those free radicals and thankfully they are conveniently colour coded for easy identification.

Red

Good source of lycopene, which helps reduce the risk of prostate cancer in males.  Found in tomatoes, watermelon, guava, and ruby grapefruit.

Lycopene is among the most powerful antioxidants around. It is a carotenoid that gives tomatoes their red colour and occurs naturally in many red foods, including watermelon and pink grapefruit. Tomatoes do provide a rich source but tomato paste is even better as cooking and processing tomatoes further stimulates and concentrates the lycopene content.  There is no current recommended dosage but suggestions range from 5-35mg per day, which equates to at least one to two servings of tomatoes or tomato products per day.

Orange and Yellow

Good source of beta-carotene, which can protect against a range of cancers.  Found in pumpkin, sweet potato, carrots, mango, paw-paw, apricots and rockmelon.

Green

Good source of lutein and zeaxanthin, two compounds related to beta-carotene that can protect our eyes as we age.  Found in broccoli, spinach, silver beet, capsicum, chilli, parsley and dark lettuces.

Blue and Purples

Good source of anthocyanin’s for antioxidant and antibacterial properties.  Found in grapes, blueberries, cranberries, beetroot and radicchio lettuce.

Brown

Good source of catechin’s for blood vessel health and of course, our happiness!  Found in some of our favourites such as tea, coffee, chocolate and red wine.

How Many of These Antioxidants Do We Need?

There are no recommended intakes just yet. We do know that it is preferable to consume antioxidants through food rather than supplements, because there are other nutrients in food that enhance their absorption. The average worldwide intake of fruit and vegetables at present is too low and we need to work toward the recommended intake of fruit and vegetables, which are 2 serves of fruit and 5 serves of vegetables daily.

To keep our bodies zinging on the inside and out during winter, go grab some. Like now.

Performance Podcast 26 June 2019

Julie Meek’s Performance Podcast from 26 June on The Morning Show on 6PR 882 AM Talkback Radio with Gareth Parker. Catch up on information, news and tips on all things performance and nutrition.

If you enjoyed listening to Julie’s Performance Podcast, please subscribe to the series here https://itunes.apple.com/au/podcast/performance-podcast-with-julie-meek/id863710606?mt=2