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Written By: Editorial Team | Published : June 2, 2014 7:14 PM IST
Even though you may risk hypertension and heart disease but can't do without that extra pinch of salt in your meal, blame it on your genes for a gene related to taste pathways could be conspiring against you, researchers have found.
Salt preferences are related to a DNA sequence variation found on the KCNA5 gene, known to be related to taste pathways in mammals, the findings showed.
'Genetic variations for taste perception are well known for bitter, sweet, and umami taste, but until now we knew little about their role in salt perception and liking,' said Antonietta Robino from University of Trieste in Italy.
For the study, researchers took into account the response of around 900 healthy adults from Italy.
Identifying the receptor associated with individual differences in the perception of salt could help us better understand how chemosensory differences can interact to influence and predict food choices and hence human nutritional behaviour.
'This could also play an important role in the development of salt substitutes, in which there is a growing commercial interest,' Robino added.
New understanding of the genes involved in taste perception and food preferences could lead to personalised nutrition plans effective not just in weight loss but in avoiding diseases such as cancer, depression, and hypertension, the researchers said.
Besides the gene that influences salt preference, the researchers, in a separate study, uncovered 17 independent genes related to liking for certain foods, including artichokes, bacon, coffee, chicory, dark chocolate, blue cheese, ice cream, liver, oil or butter on bread, orange juice, plain yoghurt, white wine and mushrooms.
Here are some tips to reduce your sodium intake:
1. Avoid processed foods that often contain high concentrations of sodium; typical examples are foods whose labels list sodium chloride, sodium bicarbonate (baking soda) or monosodium glutamate (MSG).
2. Avoid restaurant-prepared food such as pizza, pasta and noodles that are decorated with a variety of sauces.
3. Avoid salads with dressings and fast foods that make use of masala rich in salt.
4. Do not eat too much bread, chips, cereals, instant-cooking oats, crackers, salted nuts, cheese-based foods, soups, ketchups, sauces and canned foods.
5. Avoid consuming sweet baked foods frequently. They contain salt although they may not exhibit a salty taste; this is because baking powder or baking soda that is used in the manufacturing process is a salt of sodium.
6. Traditional Indian foods such as pickles and papads use salt for its taste as well as preservative action. Cut down on your consumption of such items and your dietary salt intake is bound to reduce.
7. Many of us also use salt while preparing the dough for chapatti, roti or naan; either avoid adding salt altogether or reduce the amount you add.
8. Our Indian chutneys, vegetable dishes and other accompaniments also contain a significant amount of salt; try to substitute some of the salt with fresh lemon juice that gives an appetizing tangy flavour.
With inputs from IANS
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