| Curd reduces infections as well as the duration of illnesses
Probiotics, prebiotics, antibiotics. The words often cause confusion because they sound similar. But, of course, they mean very different things, although all three are derived from the Greek word bios, meaning life.
Most people would love a magic pill that would put an end to all their health problems. Preferably one that contains prebiotics (meaning before life) and probiotics (helping life), along with a few trace elements, minerals, antioxidants and vitamins.
Probiotics are defined by the World Health Organization as microorganisms, which when administered alive in adequate amounts, confer a health benefit to the host. They are advertised by the pharma industry as protective, anti-infection agents that give the bodys natural reserves a boost against disease. They are sold as capsules and powders containing organisms like Lactobacillus bulgaricus and Streptococcus thermophilus. The products are much hyped, and have fancy names and expensive packaging.
However, what advertisements do not mention is that to be effective, there should be at least 75 million live organisms in each capsule. Food and chlorine in water kill these organisms. They therefore have to be swallowed with non-chlorinated water on an empty stomach. The intestines need to be populated with these organisms. So initially, the capsules have to be swallowed four to six times a day. The minuscule numbers contained in commercially available capsules are insufficient and do not confer any real health benefit.
Probiotics are not new products; they have been around for centuries. Fermented dough and curd (yogurt) contain natural, healthy probiotics. Commercially available yogurt may not contain live lactobacillus (probiotics) unless specifically mentioned on the package.
Natural probiotics like curd have many medicinal properties that are being rediscovered now. Curd starts to act in the mouth itself. It reduces the number of plaque forming bacteria, and prevents bad breath, tooth decay and mouth ulcers.
In the stomach, curd helps neutralise gastric acidity, reducing belching, burning and dyspepsia. It prevents infections, particularly the growth and multiplication of H. pylori, which is implicated in gastric ulcers and stomach cancer.
In the intestine, probiotics live with other protective intestinal flora, reducing gas formation and diarrhoea. The immunological effects reduce the incidence and symptoms of Crohns disease (inflammatory condition of the intestines that may affect any part from the mouth to the anus) and ulcerative colitis. Bowel habits become regular and the incidence of colon cancer reduces in those who eat curd regularly.
The action of the probiotics on digested food results in the synthesis of B-complex vitamins. This reduces vitamin deficiencies. Children who are given curd in addition to milk have less diarrhoea than those given milk alone.
Many Indians are relatively lactose intolerant and develop bloating, abdominal pain and diarrhoea when given to drink milk. They thus tend to curtail their milk intake and in the absence of calcium supplementation become susceptible to osteoporosis. In curd, however, the milk is already partially digested, and this reduces the symptoms of intolerance. As little as one cup of curd a day is beneficial in the prevention of osteoporosis.
Studies have also shown that eating curd regularly prevents the development of candidiasis, a common vaginal fungal infection. Other studies have shown conflicting results with no real benefit. But this has not prevented pharmaceutical companies from advocating lactobacillus capsules and vaginal pessaries for candidial infection. Curd also boosts the immune system. Regular eaters swear by it, saying it reduces infections as well as the duration of illnesses.
Prebiotics, on the other hand, are soluble fibres and non-digestible food ingredients that remain in the colon. They selectively stimulate the growth and activity of beneficial microorganisms already present in the large intestine. Prebiotics are found in oats, wheat, onions and garlic. When probiotics and prebiotics are combined, they form synbiotics. This probably confers the best health benefits with probiotics acting in the small intestine and prebiotics in the large.
Antibiotics are used to kill harmful microorganisms in the intestine, bloodstream and the various organs. They should be used appropriately in the correct dosage and duration. Unlike probiotics and prebiotics, antibiotics are specific for a particular infection. They are not health supplements.
Antioxidants are found in coloured fruits and vegetables. Oxidation is essential for cell metabolism. During this process a few cells die releasing harmful free radicals. This is prevented by antioxidants.
All said and done, health does not come packaged as an expensive magic capsule containing probiotics and antioxidants to be drunk with a glass of artificial fibre. For good health,
Eat four to five helpings of fresh fruits and vegetables daily. The green, yellow, orange and red ones contain antioxidants
Eat one tablespoon of homemade curd first thing in the morning on an empty stomach
Eat chappatis four or five times a week
Give these health ingredients an extra boost by exercising one hour everyday.
Dr Gita Mathai is a paediatrician with a family practice at Vellore. Questions on health issues may be emailed to her at firstname.lastname@example.org