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A documentary about one man's attempt to turn the food pyramid on its head. Donal O'Neill ditches wheat and sugar in a food plan consisting of 70% fat - under the guidance of legendary South African Sports Scientist Prof. Tim Noakes.


Yolanda Barker


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Cast overview:
Donal O'Neill Donal O'Neill ... Himself
Tim Noakes Tim Noakes ... Himself (as Prof. Tim Noakes)
John Briffa John Briffa ... Himself (as Dr. John Briffa)


The film follows a lean, fit, seemingly healthy 41 year old man on a quest to hack his genes and drop dead healthy by avoiding the heart disease and diabetes that has afflicted his family. Kevin O'Neill, an Irish Gaelic football star from the 1960s, won the first of 2 All Ireland Championships with the Down Senior Football Team in 1960 before the biggest crowd (94,000) ever seen at an Irish sporting event. When Kevin suffered a heart attack later in life, family and friends were shocked. How does a lean, fit and seemingly healthy man - who has sailed through cardiac stress tests - suddenly fall victim to heart disease? Can a controversial diet consisting of 70% fat provide his son with the answers? Written by Donal O'Neill

Plot Summary | Add Synopsis


Everything we knew about food was wrong. See more »





Official Sites:

Official Blog | Official Facebook | See more »


South Africa



Release Date:

15 December 2013 (South Africa) See more »

Filming Locations:

Cape Town, South Africa See more »

Company Credits

Production Co:

The Cape Crusaders See more »
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Technical Specs


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Did You Know?


Followed by Run on Fat: Cereal Killers 2 (2015) See more »

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User Reviews

Eye Opening Lifestyle Change That Makes A Healthy Person Truly Healthy
24 January 2015 | by hermanoscottSee all my reviews

Cereal Killers is a documentary that follows the encounters Donal O'Neill has after his choice to change to a high fat, low carbohydrate diet. Certainly, it flies in the face of what we've all known as dietary science, that the best health comes from a low fat, low protein diet. For those who think that low carb diets are crazy, this really really opens your eyes to the possibility that the diet that has made our families and our parents' families overweight and more sickly as they get older doesn't make one more healthy than say, what our ancestors ate.... before the 1950s. The proof is in the numbers, as presented at the end of the documentary (before and after). Donal doesn't just take the latest greatest Adkins diet craze (paleo, South Beach, Mediterranean, etc) and promote it. Rather this documents his radical personal change in an attempt to avoid the health problems his very healthy athletic father encountered later in life.

And radical it is.... a case of macadamia nuts.... butter... bacon/ham... all sorts of meats.... and staying consistent with his workouts. A healthy man attempting to get healthier???

Also interesting is encounters with medical staff, and asking what they think before and after measuring the standards on this patient, Donal O'Neill, looking at and listening to recommendations from doctors, nurses and staff, as well as the chefs and vendors at a local farmers' market. This is a great documentary to add to your collection of materials to study on your quest for good health. BTW, it was shown last year in a nutrition class at the local college and was recommended to watch again. Certainly, at the least, food for thought and a must see.

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