Showing posts with label food. Show all posts
Showing posts with label food. Show all posts

Friday, February 21, 2014

Obesity: Cause, Consequences and Implications

There are many causes and health implications of obesity. Many people are in illusion about the quantitative parameters of obesity. The obesity can be defined in terms of Weight/Height (W/H) ratio or index: where weight is in kilograms (kg) and height is in meters (m). This index should be 25 to 30 normally. If your weight is 47 kg and your height is 1.60 m (160 cm); your W/H index will be 29.375. An ideal weight of an individual with reference to sex, age, height and body build has already been documented somewhere else. The cause of obesity may be genetic, metabolic, physiological, lifestyle or pathological (as in cases of hypothyroidism). Take your weight on the same scale daily for a week. If you are overweight or your W/H index is considerably more than 30, then plan to loose your weight through dieting and exercise. Never starve yourself. You can eat as desired from the unrestricted food items' list but remain within limits on restricted food items' list and keep away from prohibited food items' list:

Unrestricted Food Items' List
Unrestricted food items for the obese are fresh fruits, fresh vegetables, chicken, fish, poached eggs, boiled eggs (do not eat yellows), tea, coffee, skimmed milk and products made from skimmed milk.

Restricted Food Items' List
Restricted food items for the obese are all cereals and products made from cereals. Obese person should avoid eating more than 100 gm cereal products in a day. Fat consumption should not be more than 15 gm in 24 hours.

Prohibited Food Items' List
Prohibited food items for the obese are jams, honey, ice cream, dry fruits, nuts, cold drinks, alcohol, sugar and products containing sugar.


Obesity is associated with hyperlipidemia (elevated level of cholesterol and triglyrerides in blood), hypertension (high blood pressure), non-insulin dependent diabetes mellitus (NIDDM) and high prevalence of some cancers. Other serious implications of obesity are coronary heart disease and renal disease. Abdominal fat has been documented as major risk factor for coronary heart disease. The risk of NIDDM is more in overweight men aged between 25-50 years of age. The patient is said to have severe obesity if his W/H index is more than 40. Natural history and consequences of obesity in children are not well understood till date. Strict dietary control and weight reduction would definitely help patients with severe obesity to overcome its serious implications like - NIDDM, hyperlipidemia, hypertension and coronary heart disease.

Monday, May 27, 2013

Potato & Mushroom Poisoning


If you study the botanical origin of potato, you would find that it belongs to the group of plants, the stems and leaves of which contain toxic agents termed as solanines. The botanical name of potato is Solanum tuberosum and it belongs to the family Solanaceae. Solanines are known to cause poisoning in cattle eating the potato plant. The tuber (potato) itself also contains small amounts of poisonous material called solanines in its peels. You must have seen that storage of potatoes leads to greening and sprouting. Both these processes lead to the production of poisonous material around the 'sprouting eyes' and also inside the flesh of potatoes. Sprouting and green potatoes taste bitter due to the presence of solanines and should not be consumed. Sometimes, people who are unaware of the poisonous nature of green and sprouting potatoes; eat these and develop poisoning symptoms. The onset of potato poisoning symptoms occurs some 4 to 12 hours after its consumption. The abdominal pain, vomiting and diarrhoea are predominant symptoms of potato poisoning. Mild headache and fever have also been reported in some cases. Severe potato poisoning may also lead to a state of coma.

Be cautious while eating potato products. The treatment of potato poisoning is always symptomatic; loss of fluids and electrolytes have to be replaced orally with oral rehydration powder dissolved in water or intravenously in cases of severe dehydration. Use of antibiotics should be avoided in known cases of potato poisoning. An average general practitioner may miss the diagnosis of potato poisoning and pass of the case as a common case of 'gastroenteritis'. The potato poisoning may be severe form of food poisoning in students eating midday meal from the common kitchen at schools, as the kitchen staff generally overlook the quality of potatoes received by them.


Mushroom poisoning is also presented with abdominal pain, vomiting and profuse diarrhoea after latent phase of around 12 hours or more. Severe mushroom poisoning may also lead to liver and kidney failure within 3 to 4 days after the development of vomiting and diarrhoea. Some of the mushrooms, e.g. Amanita phalloides are so poisonous that consumption of one mushroom is sufficient to cause severe poisoning and three mushrooms could be considered a fetal dose. With the cultivation of mushrooms being taken up by the trained personals, the cases of mushroom poisoning have come down. Only those who collect and eat wild mushrooms fall prey to mushroom poisoning due to lack of knowledge about the identifying features of poisonous mushrooms. Knowledge is the key to care and maintenance of health. Never eat green or sprouting potatoes and wild mushrooms to save yourselves from potato poisoning or mushroom poisoning.