IN LIFE, some partnerships are meant to be - think Lennon and MeCartney; Bogie and Bacall. Surprisingly, the same thing can happen on your dinner plate, and taking advantage of it can give you a major health boost.
Gardeners have long known the benefits of companion planting, where two different types of plants, say basil and tomatoes, grow far better together than they do apart. Now7, scientists are discovering the same is true with food and its effects on our bodies.
It's called food synergy, and its benefits are powerful, possibly preventing major chronic diseases like cancer, heart disease, and stroke. "By eating certain foods together, their compounds are absorbed at the same time so that they are circulating together at the cellular level," says US nutritionist Elaine Magee, whose book on the topic is called Food Synergy.
"Broccoli and tomato is one example. Eaten alone, both are healthy foods, but eaten together their ability to fight cancer may be exponential. It's like adding one plus one and getting four."
Using the broccoli and tomato example, Drjohn Erdman, professor of food science and human nutrition at the University of Illinois, explains how it works.
Sulphur compounds in broccoli activate enzymes in the body that break down carcinogens. Lycopene, which gives tomato its color, is likely to prevent the growth of certain cancers, especially those of the prostate, lung, and stomach.
"Eaten together, we see an additive effect," he says. "We think the bioactive [effect on living tissue] components from these two foods act on different pathways to reduce the risk of cancer. Aiming for three or so servings of each throughout the week is a wonderful start - eating them in the same meal is even better.
"Cooked tomatoes are better than raw. In my house, my wife and I do a lot of stir-frying, and tomato and broccoli arc always part of the stir-fry. Mild cooking is best, and the addition of some oil will enhance the bioavailability [absorption] of these foods even more."
FOOD-DRUG EQUATIONS TO AVOID
> Different foods can also have a negative effect on the way medications work, and there are definitely some combinations to avoid. "Some antibiotics are not well absorbed if taken with a glass of milk or with dairy products," says Dr Mark Naunton, associate professor in pharmacy at the University of Canberra. "Milk also upsets the absorption of iron supplements."
> High-fat meals can significantly slow the rate at which the stomach empties, as well as the rate at which some medications are absorbed. "However, some drugs - like the antifungal drug griseofulvin [taken orally in the treatment of tinea] - are actually better taken with a fatty meal, where they spend more time in the stomach and can be broken down," says Naunton.
HERE ARE SOME OTHER GREAT HEALTH-BOOSTING COMBINATIONS
A BACKFLIP ON FAT
Our relationship with fat has taken an about-turn; good fats and oils now have their place at the table. Fat is needed to soak up the nutrients in fresh foods, and food scientists have found it is essential for the absorption of lycopene, and alpha- and beta-carotenes.
Some healthy snacks, like baby carrots, really need to be eaten with a source of fat for us to absorb the beta-carotene, says Dr Wendy White, associate professor of food science and human nutrition at Iowa State University. White found that when salads were eaten with full-fat dressings, there w7as a significantly greater absorption of cancer-fighting and heart-protective carotenoids than with low-fat versions.
If you prefer your salad undressed, add small amounts of avocado, nuts or cheese, says White. Or mix rocket, tomatoes and mushrooms with feta on a pizza.
THE PROTEIN FIX
The humble peanut-butter sandwich is a power combo. Peanut butter on wholegrain bread gives the body the nine essential amino acids needed to make protein, according to Dr Diane Birt, professor of food science and human nutrition, who works with White. "When the body is synthesizing proteins, it needs all the amino acids available at the same time. Wheal lacks some amino acids and peanuts have those amino acids. Together, they make a whole."
Combining rice and kidney beans is another way to get all nine amino acids. Simmer in a pan with onion, capsicum, garlic and tomato paste and you get bonus antioxidants.
TOFU & TEA TACKLES TUMOURS
Certain types of cancers, including breast and prostate, are significantly lower in Asian countries where people commonly eat soy and drink green tea, says Magee, who asks: "Is there some anti-cancer synergy going on between these two Asian staples?"
Researchers investigating oestrogen-dependent human breast cancer in female mice found that phytochemicals derived from soy reduced tumour growth by 23%, and that tea reduced it by 56%. But together they cut tumour growth by 72%.
Dr Jin-Rong Zhou, director of the Nutrition-Metabolism Laboratory at the Beth Israel Deaconess Medical Centre in Boston, says the combination of soy and tea may "target different molecules or signaling pathways" than each one acting alone. "Soy is an equal-opportunity synergist!" says Magce, and should be included in men's diets, too.
POST-WORKOUT BRUNCH
If working out has left you peckish, treat yourself to a skinny latte and raisin toast. Caffeine paired with carbs helps muscles recover more quickly from strenuous exercise, says John Hawley, a professor of exercise physiology at RMIT in Melbourne. The caffeine-carbohydrate combination may store up to 66% more glycogen - the main fuel source for muscles - for the next day.
MINIMISING DAMAGE
Food synergy isn't just about boosting the things food has to offer. It can also be about limiting the harm caused by the occasional unwise indulgence.
HERE ARE SOME EXAMPLES:
SHIRAZ WITH THAT BURGER?
If you've succumbed lo an unhealthy takeaway, red wine may undo some of the damage. "The polyphenols in red wine are likely lo reduce the circulation of oxycholeslerol after absorption," says Dr Fausta Natella, of the National Research Institute on Food and Nutrition, Rome. This dangerous form of oxidized cholesterol is found in fried and processed food. "Oxycholesterol could cause atherosclerosis, and it also has a carcinogenic effect," says Natella.
When Natella studied blood samples of people who had sipped wine with a double cheeseburger, the wine appeared to stop oxycholesterol in its tracks. (Naturally, overindulging in the wine will bring a whole other set of problems.
ADD AN OJ TO YOUR FRY-UP
Meals high in fat and carbs, such as a classic "big breakfast" with fried eggs, bacon, hash browns and toast, can play havoc with our bodies, triggering inflammation and SOCS3, a protein that contributes to development of type 2 diabetes. "It's intriguing, but orange juice neutralizes this effect," says Dr Paresh Dandona, director of the Diabetes-Endocrinology Centre of West New York.
After taking blood samples from a group who teamed orange juice with a 3800-kilqjoule breakfast of egg and sausage muffins and hash browns, Dandona found no significant increase in SOCS3, and no spike in inflammatory free radicals, as you could expect with this sort of meal.
Gardeners have long known the benefits of companion planting, where two different types of plants, say basil and tomatoes, grow far better together than they do apart. Now7, scientists are discovering the same is true with food and its effects on our bodies.
It's called food synergy, and its benefits are powerful, possibly preventing major chronic diseases like cancer, heart disease, and stroke. "By eating certain foods together, their compounds are absorbed at the same time so that they are circulating together at the cellular level," says US nutritionist Elaine Magee, whose book on the topic is called Food Synergy.
"Broccoli and tomato is one example. Eaten alone, both are healthy foods, but eaten together their ability to fight cancer may be exponential. It's like adding one plus one and getting four."
Using the broccoli and tomato example, Drjohn Erdman, professor of food science and human nutrition at the University of Illinois, explains how it works.
Sulphur compounds in broccoli activate enzymes in the body that break down carcinogens. Lycopene, which gives tomato its color, is likely to prevent the growth of certain cancers, especially those of the prostate, lung, and stomach.
"Eaten together, we see an additive effect," he says. "We think the bioactive [effect on living tissue] components from these two foods act on different pathways to reduce the risk of cancer. Aiming for three or so servings of each throughout the week is a wonderful start - eating them in the same meal is even better.
"Cooked tomatoes are better than raw. In my house, my wife and I do a lot of stir-frying, and tomato and broccoli arc always part of the stir-fry. Mild cooking is best, and the addition of some oil will enhance the bioavailability [absorption] of these foods even more."
FOOD-DRUG EQUATIONS TO AVOID
> Different foods can also have a negative effect on the way medications work, and there are definitely some combinations to avoid. "Some antibiotics are not well absorbed if taken with a glass of milk or with dairy products," says Dr Mark Naunton, associate professor in pharmacy at the University of Canberra. "Milk also upsets the absorption of iron supplements."
> High-fat meals can significantly slow the rate at which the stomach empties, as well as the rate at which some medications are absorbed. "However, some drugs - like the antifungal drug griseofulvin [taken orally in the treatment of tinea] - are actually better taken with a fatty meal, where they spend more time in the stomach and can be broken down," says Naunton.
HERE ARE SOME OTHER GREAT HEALTH-BOOSTING COMBINATIONS
A BACKFLIP ON FAT
Our relationship with fat has taken an about-turn; good fats and oils now have their place at the table. Fat is needed to soak up the nutrients in fresh foods, and food scientists have found it is essential for the absorption of lycopene, and alpha- and beta-carotenes.
Some healthy snacks, like baby carrots, really need to be eaten with a source of fat for us to absorb the beta-carotene, says Dr Wendy White, associate professor of food science and human nutrition at Iowa State University. White found that when salads were eaten with full-fat dressings, there w7as a significantly greater absorption of cancer-fighting and heart-protective carotenoids than with low-fat versions.
If you prefer your salad undressed, add small amounts of avocado, nuts or cheese, says White. Or mix rocket, tomatoes and mushrooms with feta on a pizza.
THE PROTEIN FIX
The humble peanut-butter sandwich is a power combo. Peanut butter on wholegrain bread gives the body the nine essential amino acids needed to make protein, according to Dr Diane Birt, professor of food science and human nutrition, who works with White. "When the body is synthesizing proteins, it needs all the amino acids available at the same time. Wheal lacks some amino acids and peanuts have those amino acids. Together, they make a whole."
Combining rice and kidney beans is another way to get all nine amino acids. Simmer in a pan with onion, capsicum, garlic and tomato paste and you get bonus antioxidants.
TOFU & TEA TACKLES TUMOURS
Certain types of cancers, including breast and prostate, are significantly lower in Asian countries where people commonly eat soy and drink green tea, says Magee, who asks: "Is there some anti-cancer synergy going on between these two Asian staples?"
Researchers investigating oestrogen-dependent human breast cancer in female mice found that phytochemicals derived from soy reduced tumour growth by 23%, and that tea reduced it by 56%. But together they cut tumour growth by 72%.
Dr Jin-Rong Zhou, director of the Nutrition-Metabolism Laboratory at the Beth Israel Deaconess Medical Centre in Boston, says the combination of soy and tea may "target different molecules or signaling pathways" than each one acting alone. "Soy is an equal-opportunity synergist!" says Magce, and should be included in men's diets, too.
POST-WORKOUT BRUNCH
If working out has left you peckish, treat yourself to a skinny latte and raisin toast. Caffeine paired with carbs helps muscles recover more quickly from strenuous exercise, says John Hawley, a professor of exercise physiology at RMIT in Melbourne. The caffeine-carbohydrate combination may store up to 66% more glycogen - the main fuel source for muscles - for the next day.
MINIMISING DAMAGE
Food synergy isn't just about boosting the things food has to offer. It can also be about limiting the harm caused by the occasional unwise indulgence.
HERE ARE SOME EXAMPLES:
SHIRAZ WITH THAT BURGER?
If you've succumbed lo an unhealthy takeaway, red wine may undo some of the damage. "The polyphenols in red wine are likely lo reduce the circulation of oxycholeslerol after absorption," says Dr Fausta Natella, of the National Research Institute on Food and Nutrition, Rome. This dangerous form of oxidized cholesterol is found in fried and processed food. "Oxycholesterol could cause atherosclerosis, and it also has a carcinogenic effect," says Natella.
When Natella studied blood samples of people who had sipped wine with a double cheeseburger, the wine appeared to stop oxycholesterol in its tracks. (Naturally, overindulging in the wine will bring a whole other set of problems.
ADD AN OJ TO YOUR FRY-UP
Meals high in fat and carbs, such as a classic "big breakfast" with fried eggs, bacon, hash browns and toast, can play havoc with our bodies, triggering inflammation and SOCS3, a protein that contributes to development of type 2 diabetes. "It's intriguing, but orange juice neutralizes this effect," says Dr Paresh Dandona, director of the Diabetes-Endocrinology Centre of West New York.
After taking blood samples from a group who teamed orange juice with a 3800-kilqjoule breakfast of egg and sausage muffins and hash browns, Dandona found no significant increase in SOCS3, and no spike in inflammatory free radicals, as you could expect with this sort of meal.




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