How much caffeine intake a day is still safe for health?
My question is: how much mg of caffeine (as found for example in Nescafe) consumed per day is still considered safe for health?
When taken in excessive amounts what can be the harmful effects?
Are there any harmful effects of sleep deprivation which is a likely result when caffeine is taken in large doses?
Is there any chance of developing any tolerance so that as days of use increase more caffeine is required to get the desired effect?
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I have found an article published in November 2017 that states:
"Evidence supported consumption of ?400 mg/day in adults is not associated with overt, adverse effects."
Link to the article: www.sciencedirect.com/science/article/pii/S0278691517301709
You can see the meaning of 400 mg of caffeine at this webpage:
www.foodinsight.org/caffeine-safe-amount-daily-efsa
What makes 400 mg of caffeine?
5 shots (2-oz) of espresso
4.7 cups (8-oz) of drip coffee
5 cans (250 ml) of energy drinks
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