Caffeine-How much did u need ?

Now a days, coffee comes in many varieties, such as Nescafe - Rubusta  and Bru- Gold , as well as different flavors and sizes.
Colas are made with artificial flavors and added caffeine. The amount of caffeine in all of these different drinks can vary widely. Coffee used to be just "black". Coca-Cola was originally made with Kola nut extracts and contained cocaine ??
no wonder it was so popular! Energy drinks are a new trend in highly caffeinated beverages. They contain a wealth of sugar and other natural stimulants that help provide that sought-after energy boost. Caffeine is also found in many weight loss preparations and in some over-the-counter pain, diet and stimulant medications.

Here are the most common sources of caffeine In India

Coffee - Contains about 100mg per 250 ml. cup though most coffee .

Black Tea - Contains 50mg per 250 ml Cup

Green Tea  -contains 25mg.

Caffeinated Sodas - Coke, Pepsi, and others contain 50-60 mg per 500 ml

Super-Caffeinated Colas -

contains 80 mg per 500 ml can.

Energy Drinks - Red Bull and monster contain about 80mg per 8 ounce can.

Milk Chocolate - Contains 6 mg/ounce.

Medications - Anacin contains 32mg/tablet. Extra Strength Excedrin contains 65mg/tablet.

(Source PTI **)
I googled this and got this information okay this is not important what this numbers say i. e. important,

How much do you consume? Add it up and see. I would guess, if you are a typical caffeine Lover, that you top out over 300mg per day.

Caffeine has long been considered an unhealthy lifestyle choice. Caffeine's negative effects on the nervous system and how it increases anxiety, heart rate and sleepless nights have always been a concern. But recently coffee and caffeine have been shown to have some significant medical benefits.
I recently read a article in Nature Scientific Journal regarding caffeine i.e. mentioned that
After more than 10,000 scientific studies over the past 30 years the findings indicate that people who drink one to three cups of coffee a day are less likely to contract diabetes, develop Parkinson's disease, or have gallstones. Additionally, coffee reduces the risk of colon cancer and cirrhosis of the liver. Some of these findings may be due to the health benefits of the coffee bean itself, but most can be linked directly to caffeine. Coffee has also been shown to be beneficial in asthma (caffeine is a bronchodilator), stopping headaches (a vasoconstrictor) and improving mood (releases dopamine), all due to the systemic actions of caffeine.

In spite of these beneficial effects, it is still recommended to consume caffeine in moderation. Enjoy your day cup(s) of joe - or my favorite, Diet Pepsi - but remember that too much of a good thing is not always better. Everything in moderation, nothing to excess.