![]() ![]() SummaryĤ00 mg of caffeine daily is considered safe for most adults, but cutting your intake to 200 mg daily can help reduce your risk of adverse side effects. However, you would need to drink more than six 12-ounce (355-ml) cans of Coke or four 12-ounce (355-ml) cans of Diet Coke per day to reach this amount. Ideally, though, it’s best to limit your intake to around 200 mg daily to reduce your risk of side effects.įor reference, this equals just two 8-ounce (237-ml) cups of coffee or around five 8-ounce (237-ml) cups of green tea. In fact, doses up to 400 mg daily are considered safe for most adults ( 20). When consumed in moderation, caffeine can be used safely with minimal risk of side effects. ![]() However, it can also be addictive and may cause a wide range of side effects in some people. SummaryĬaffeine consumption has been linked to improvements in metabolism, exercise performance and alertness. However, it can also come with negative side effects, especially for people who are sensitive to its effects.Ĭaffeine can be addictive, and some research indicates that genetic variations could cause people to respond differently to it ( 12, 13).Ĭaffeine intake has also been shown to affect mental health, with one study in 2,307 children associating increased caffeine consumption with higher levels of perceived anxiety and depression ( 14).Įxcess intake can also cause other side effects, including headaches, high blood pressure and sleep disturbances ( 15, 16, 17).Īdditionally, it’s recommended that women who are pregnant or breastfeeding limit their caffeine intake, as it may be linked to a higher risk of miscarriage and low birth weight ( 18, 19). In particular, research shows that it may increase metabolism, improve exercise performance and boost alertness ( 9, 10, 11). Why Caffeine Intake Matters for SomeĬaffeine consumption can have several benefits for your health. SummaryĬoke and Diet Coke are generally lower in caffeine than other caffeinated beverages, including energy drinks, coffee and tea. Keep in mind, however, that the caffeine content varies for these drinks based on different factors, including brand, ingredients and specific type of beverage. Soft drinks account for a higher proportion of the intake in people younger than 18. SummaryĬaffeine is a natural stimulant found in many products including coffee, soft drinks, energy drinks and over-the-counter medications. While coffee accounts for the majority of caffeine intake across the board, carbonated soft drinks like Coke make up a high proportion of the intake in those younger than 18 ( 5). In fact, it’s estimated that 85% of the US population consumes at least one caffeinated beverage per day, with an average daily intake of 165 mg of caffeine. Nowadays, caffeine tops the charts as one of the most commonly consumed ingredients around the world ( 4). It’s also commonly added to many products, including soft drinks, energy drinks and certain over-the-counter medications. It can be found in the leaves, seeds and fruits of many plants and is especially prevalent in cocoa beans, tea leaves and coffee beans ( 3). Caffeine is a naturally-occurring chemical that acts as a central nervous system stimulant, enhancing alertness and fighting off fatigue.
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