Natural Food Chemicals

Natural Food Chemicals

organicsChemicals are found everywhere in nature, including in foods. Some are beneficial; for example, the vitamins we need for good health, and the flavour and aroma substances that make foods so enjoyable. On the other hand, many plants contain substances which are poisonous to humans, and of course we avoid cultivating these as foods. The staple foods we eat today have been selected by trial and error over thousands of years, both for their nutritional value and because most people can tolerate them without getting sick.

Some people are born with a sensitive constitution and react more readily to food chemicals than others. The tendency is probably inherited, but environmental triggers — a sudden change of diet, a bad food or drug reaction, a nasty viral infection (for example, gastroenteritis, glandular fever) — can bring on symptoms at any age by altering the way the body reacts to food chemicals. Women often become more sensitive in their child-bearing years, perhaps due to hormonal changes, which might be nature’s way of preventing pregnant and breast-feeding women from eating foods that could harm the developing baby.

Babies are more vulnerable to food chemicals because their metabolism, gastrointestinal and nervous systems are immature, which is why they often prefer bland foods. As children mature, their bodies become accustomed to handling small amounts of rich, spicy and highly flavoured foods, which usually only cause ill effects if eaten in excess.

It’s important to realize that the natural chemicals in many ‘healthy’ foods can be just as much of a problem for sensitive people as the ‘artificial’ ones used as food additives. Foods vary tremendously in chemical composition. The natural substances most likely to upset sensitive individuals — salicylates, amines and glutamate — are the ones common to many different foods, and therefore consumed in greatest quantity in the daily diet. As a rule, the tastier a food is, the richer it’s likely to be in natural chemicals. 

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