Researchers Confirm Moderate Coffee Intake Supports Health and Alertness

For years, coffee was suspected of causing heart problems and increasing mortality risk. However, recent research clarifies that moderate coffee consumption can be part of a healthy diet. Earlier studies failed to account for lifestyle factors such as smoking and poor diet among heavy coffee drinkers, which skewed results. When these factors are considered, coffee no longer appears harmful and may even offer health benefits due to its antioxidants and other active compounds.

Most adults can safely consume up to 400 mg of caffeine daily, equivalent to about 3 to 4 cups of coffee. Pregnant women are advised to limit intake to 200 mg per day, while teenagers should not exceed 100 mg. Besides coffee, caffeine is found in other foods and drinks: tea contains 30 to 50 mg per cup, dark chocolate 20 to 40 mg per 100 grams, and guarana, a tropical plant used in supplements, has 40 to 80 mg per gram. Energy drinks also contain caffeine (80 to 200 mg per can) but are generally ultra-processed and high in sugars or artificial sweeteners, so regular consumption is discouraged.

Nutrition experts emphasize that caffeine is not inherently harmful; its effects depend on dosage, timing, and context. When consumed mindfully, caffeine can enhance alertness and cognitive function and may contribute to overall health. Additionally, enjoying a cup of coffee can provide a pleasant daily moment of relaxation and comfort, beyond just the caffeine content.

Liron Ofek David, head of the Clinical Nutrition Unit at Clalit Health Services in the Southern District, highlights the importance of understanding caffeine sources and consumption recommendations to integrate coffee healthily into daily life.