Kanani adds that those with certain heart conditions should reduce their caffeine intake, definitely keeping it below the 400 mg threshold. Caffeinecan also cause heart palpitations and stress, so if you do have stress/anxiety, it might be reasonable to limit your intake of caffeinated drinks." "Caffeine has been reported as a precipitant for migraine, but each person is different. "The advice for pregnant women is to avoid caffeinated drinks in the first trimester, after which women should not consume more than 200 mg - equivalent to about two cups of coffee - a day," says Bouzhezra. These include pregnant women and those who are looking to start a family, along with migraine and anxiety sufferers. There are other groups of people too who might benefit from giving up caffeine or cutting down. (For a child weighing 40 kg, this would equate to 120 mg - about the same as one strong coffee.) As a rule of thumb, children should consume no more than 3 mg of caffeine a day for every kilo of their body weight. There's a reason energy drinks are set to be banned for children in England: younger brains are more sensitive to caffeine. Knowing your caffeine intake is particularly important in childhood and adolescence. But more research is needed to understand the dependence, the severity and if there is a real impact on the general population's health," says Boukhezra. "The World Health Organization recognises the diagnosis of caffeine dependence syndrome. (Many of us can testify to the jitters, energy dips and poor-quality sleep that occur after one too many visits to Starbucks.) In truth, you don't need to be drinking anywhere near that amount for there to be some negative consequences. This kind of consumption is hardly conducive to health and well-being. Or the singer Robbie Williams, who at one point claimed to be drinking 20 cans of Red Bull and 36 double espressos daily. Just think of the French novelist Honoré de Balzac, who called coffee 'a great power in my life' and was supposed to have imbibed 50 cups a day. 400 mg caffeine equates to around four cups of coffee, ten cans of cola, or two energy drinks.īut moderation is the key word here. I simply couldn't handle the headaches, irritability and brain fog that accompanied going 'cold turkey'.īoukhezra adds that for healthy adults consuming moderate amounts - up to 300-400 mg of caffeine a day - there is little or no evidence of health risks, and some evidence of health benefits. For heavy caffeine drinkers who stop abruptly, the body can take even longer to readjust.įor me personally, the lure of an espresso was just too much and I quickly fell back into my old habits. As a rough rule, they typically last between two and nine days, peaking after one or two days of abstinence. It's important to point out that not everyone gets caffeine withdrawal symptoms - and if you do, the caffeine withdrawal symptom severity will depend on how much caffeine you were drinking. "Caffeine is a stimulant and those who are used to consuming significant quantities of caffeine on a regular basis may experience lethargy, and tiredness, and find it difficult to concentrate if they stop suddenly," explains Abbas Kanani, a pharmacist at the online pharmacy Chemist Click. While I have never struggled with Dry January or even going vegan, committing to giving up caffeine felt like a different proposition altogether.
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