Thousands of business people rely on caffeine and coffee every day to improve energy levels. Studies suggest that caffeine can be part of a healthy diet for most humans, but too much caffeine could be detrimental to your health.

Up to 400 milligrams (mg) of caffeine per day appears to be a safe amount for most healthy adults. This is roughly the amount of caffeine in four cups of joe.

Exceeding this amount may cause these unpleasant side effects:

• Restlessness
• Dizziness
• Anxiety
• Fast heartbeat
• Insomnia
• Irritability
• Tremors
• Upset stomach

If you experience these symptoms after drinking a cup of coffee, you may be sensitive to caffeine and should consider avoiding caffeinated drinks altogether.

It’s not all bad though. Here are 7 health benefits of drinking coffee:

• Improves your energy levels and concentration;
• Assists you in burning fat;
• Enhances your physical performance;
• Contains essential nutrients and antioxidants;
• Lowers the risk of Type 2 diabetes;
• Lowers the risk of Parkinson’s disease;
• Protects you from Alzheimer’s disease and dementia.

So is coffee good for you? The answer is Yes! But it depends on the kind of coffee and the quantity.