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Caffeine Metabolism

The absorption of caffeine at gastrointestinarl is fast and virtually complete within 45 minutes of ingestion.

But the potential effects of caffeine on the metabolism of fats, are inconclusive. The studies focus on the effect on the body of caffeine intake and its effect topical level, ie as an ingredient in creams or gels on the skin. Gastrointestinal level, absorption is rapid and the plasma concentration of the substance is reached between 15-120 minutes after consumption and has a half-life of 2.5-4.5 hours in young people and adults, while in children and the elderly can take many more hours to metabolize.

Although the metabolism of caffeine is different in each individual (there are more sensitive to this substance), it is estimated that about 80% of caffeine is metabolized to paraxanthine, 16% is converted to theobromine and theophylline in the liver. Being a water-soluble substance, caffeine and its metabolites are excreted in the urine and usually moderate consumption has no adverse effects in the body.

The epidemiological information available indicates that total caffeine consumption of less than 300 mg a day (2-3 cups of coffee) is not a problem, although both pregnant women and people with medical conditions or who are sensitive to caffeine, should be careful to moderate their consumption. However, given the large number of products containing caffeine and marketed in various forms (capsules, tablets, etc) should take into account that indicate the health authorities.

Source: www.alimentacion-sana.com.ar

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