Caffeine is a central nervous system stimulant. It can temporarily make you feel more awake and energetic, but it can also give you the jitters. Withdrawal or overdose can cause a range of problems.
Caffeine provides no nutritional value. It’s tasteless, so you don’t necessarily know if it’s in your food. However, it can affect your mood and cause physical side effects.
Meredith told us that studies have shown high caffeine intake may also produce negative side effects in pregnant women and individuals with heart conditions or anxiety disorders.
However, he added that the majority of us consume caffeine in moderation without any harmful side effects, so healthy adults should not be overly concerned.
"But we should be mindful that when we consume caffeine, we are consuming a psychoactive substance that can cause or exacerbate some health problems," he cautioned.
You may have heard or read about other negative health effects from caffeine consumption, but as of now, there just isn’t enough evidence to fully endorse those as legitimate health concerns.