Researchers Confirm Moderate Coffee Intake Supports Health and Alertness

For many years, coffee was considered harmful, linked to heart problems and increased mortality. However, recent research shows 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 were controlled, coffee was no longer seen as dangerous.

Coffee beans contain hundreds of active compounds, including antioxidants, which may contribute to its health benefits. Experts recommend up to 400 mg of caffeine daily (about 3 to 4 cups of coffee) as safe for most adults. Pregnant women should limit intake to 200 mg per day, and adolescents to 100 mg.

Caffeine is found not only in coffee (80-100 mg per cup) but also in green and black tea (30-50 mg per cup), dark chocolate (20-40 mg per 100 grams), guarana (40-80 mg per gram), and energy drinks (80-200 mg per can). Energy drinks, however, are often ultra-processed and contain sugars or artificial sweeteners, so regular consumption is discouraged.

Liron Ofek David, head of the Clinical Nutrition Unit at Clalit Health Services in southern Israel, emphasizes that caffeine is not an enemy but a matter of dosage, timing, and context. Consumed mindfully, caffeine can enhance alertness and performance and possibly support health. Additionally, coffee offers a moment of enjoyment and relaxation during the day.