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Caffeine is a stimulant that occurs naturally in more than 60 plants, including coffee beans, tea leaves, and kola nuts, according to the U.S. National Library of Medicine. But there are also ...
The health effects of coffee include various possible health benefits and health risks. [1]A 2017 umbrella review of meta-analyses found that drinking coffee is generally safe within usual levels of intake and is more likely to improve health outcomes than to cause harm at doses of 3 or 4 cups of coffee daily.
Coffee and matcha offer some similar health benefits, though they vary a bit. Matcha is packed with antioxidants like EGCG, which help fight free radicals and support your immune system.
Both doctors say that having a sugar-sweetened coffee every day can have detrimental health effects. “Added sugar has low nutritional value and can cause a lot of health problems.
1912 advertisement for tea in the Sydney Morning Herald, describing its supposed health benefits. The health effects of tea have been studied throughout human history. In clinical research conducted over the early 21st century, tea has been studied extensively for its potential to lower the risk of human diseases, but there is no good scientific evidence to support any therapeutic uses other ...
Roasted coffee beans. Around thirty plant species are known to contain caffeine. [220] Common sources are the "beans" (seeds) of the two cultivated coffee plants, Coffea arabica and Coffea canephora (the quantity varies, but 1.3% is a typical value); and of the cocoa plant, Theobroma cacao; the leaves of the tea plant; and kola nuts.
Along with a temporary pick-me-up, research has continued to show the longer-term health effects of coffee include a decreased risk of cancer, heart failure, Type 2 diabetes and even death.
Caffeine dependence can cause a host of physiological effects if caffeine consumption is not maintained. Withdrawal symptoms may include headaches, fatigue, difficulty concentrating, lack of motivation, mood swings, nausea, insomnia, dizziness, cardiac issues, hypertension, anxiety, backaches, and joint pain; these can range in severity from mild to severe. [18]