Tag Archives: antioxidant properties

Chocolate may protect against bowel cancer

Not only is chocolate a sweet treat for the stomach, new research suggests that cocoa can help protect against intestinal diseases like colon cancer.

In what they claim is the first study of its kind in relation to intestinal pathologies, a research team out of Spain has concluded that cocoa can act as a defense system for the body by interrupting the cell-signaling pathways involved in cell proliferation, a process which results in the formation of tumors.

Their study also found that a cocoa-rich diet can help increase a natural process known as apoptosis or cell death, in which the body eliminates old, unhealthy cells, to make way for new ones – a “chemoprevention mechanism” that helps ward off cancer advancement.

For eight weeks, researchers fed rats a cocoa-rich diet – 12% – and then induced the effects of cancer.

Results showed that the rats that consumed a diet high in cocoa had significantly reduced aberrant crypts, a common manifestation of colon cancer. Crypts are tube-like glands found in the lining of the colon and rectum and, when functioning normally, renew the lining of the intestine and produce mucus.

Chocolate

Chocolate

Scientists also noted an improvement in the rats’ antioxidant defenses and a decrease in oxidative damage induced by the carcinogens.


According to the WHO, colorectal cancer is one of the leading causes of death worldwide, and is the fourth most common cancer after lung, stomach and liver.

Cocoa is rich in flavonoids and antioxidant properties.

A study published last year in the British Medical Journal also found that high levels of chocolate consumption could be associated with a reduced risk of developing heart disease by up to 37%.

Berries and nuts boost the system

Mulberries

These fruits, right, are very rich in iron, vital for maintaining a healthy count of red blood cells and preventing anaemia – a rare feature among berries. They contain 1.85mg per 100g, 23 per cent of the recommended daily intake, on a par with sirloin beef.

Mulberries

Mulberries

They are also a good source of Vitamin C and have high levels of resveratrol, an antioxidant also found in red wine that is thought to ‘clean up’ pollutants in the body. Studies on rats found that resveratrol was effective against tumours of the skin, breast, lung and prostate.

Hazlenuts

They contain higher levels of monounsaturated fat than any other nut, good for lowering bad cholesterol that can clog up the arteries. A 2007 study showed that men who ate hazelnuts had a 35 per cent lower risk of coronary heart disease than non nut-eaters.

Hazlenuts

Hazlenuts

Wilson says: ‘They are a good vegetarian source of Omega 3 fatty acids, which help to reduce arrhythmia – irregular beating of the heart.’

Rosehip

Rosehip syrup is the traditional remedy for the common cold because of the high Vitamin C content of the berries, about 1,000 times higher than oranges or lemons. They are also rich in Vitamins A, D and E, calcium, iron and fatty acids.

Rosehip

Rosehip

‘Studies have shown that rosehip powder was effective in reducing the pain from osteoarthritis,’ says Wilson.


Bilberries

The tiny dark blue fruits have high levels of anthocyanins, plant pigments which have antioxidant properties, some of which are thought to inhibit tumour growth.

Bilberries

Bilberries

‘They also have anti-inflammatory properties,’ says Wilson. ‘They are good for eye health as they help protect the blood vessels and the connective tissue in the eyes, reducing the risk of cataracts.’

Sloes

The fruit of the blackthorn bush are a type of plum, bitter, but rich in Vitamin C and antioxidants. They are a natural antibacterial – so could be useful in a poultice – and high in the antioxidants that have been linked to a lower risk of heart disease. Sloe syrup has traditionally been used as a tonic to fight colds.

Sloes

Sloes

Sloes can also be used to flavour gin. ‘There will be some antioxidant content left, but sloe gin is often made with lots of sugar so has a high calorie content,’ says Wilson.