Caffeine can passes through the gut and go into the bloodstream. Aiming your liver, where the metabolic processes will break it down into its building block. They are the once that actually can affect processes like your brain function. In the brain, caffeine blocks the inhibitory neurotransmitter adenosine. When this happens, the amount of other neurotransmitters like norepinephrine and dopamine increases, leading to enhanced firing of neurons. Caffeine stimulates your nervous system, signaling fat cells to break down body fat, making free fatty acids available as fuel.
Caffeine is stimulating your brain but it also comes with a strong diuretic effect. Caffeine consumption encourage urination and this can affect your hydration status. Different types of coffee can differ in the actual amount of caffeine that they carry. And the variety of coffee choices can affect your hydration status differently.
According to the latest Harvard research evidence suggests that consumption of caffeinated coffee does not increase the risk of cardiovascular diseases and cancers. In fact, consumption of 3 to 5 standard cups of coffee daily has been consistently associated with a reduced risk of several chronic diseases.
The very personal biochemistry will manifest here as well as some individuals may not tolerate higher amounts of caffeine and they might experience symptoms of anxiety and insomnia.
One cup of coffee contains:
Riboflavin (vitamin B2)
Pantothenic acid (vitamin B5)
Manganese and potassium
Magnesium and niacin (vitamin B3)
Coffee beans also contain a type of antioxidants called polyphenols. We know the high importance of the antioxidants as they can help rid the body of free radicals, a type of waste product that the body naturally produces as a result of certain processes. As free radicals are toxic, they are known to cause inflammation.
Caffeine is the main feature of coffee, but coffee contains many compounds, and there are different ways of drinking it. So it difficult to have clear statement and formula about its exact effects on each and every person and which components have which benefits and risks.
A person who wishes to derive health benefits from coffee should avoid exceeding the daily recommended intake and say No to ingredients such as sugar, cream and artificial flavorings.
Darker roasts does not actually contain a higher level of caffeine than the lighter roasts. Lighter roasts most likely will have a slightly higher concentration!
It is important to know that coffee grinds should not be brewed more than once. Brewed grinds taste bitter and may no longer produce a pleasant coffee flavor.
Coffee contains high levels of antioxidants and beneficial nutrients.
Studies show that caffeine can boost your metabolic rate by 3–11%