Coffee seems to be the most popular and common beverages that enjoys by everyone. The aroma attracted almost everyone to have a cup of coffee every day in the morning. Coffee is a brewed drink prepared from roasted coffee bean. The coffee contains 40 volatile compounds that gives to the coffee aroma  . The aroma results on the feeling of alertness, trigger emotions and evoke memories  .
However, further research is needed on this area. While, caffeine is one of the compound found in the coffee that stimulate the central nervous system (CNS) and positive effect of long memory. A cup of coffee contains an approximately of 75 – 100mg of caffeine. Limit the intake of caffeine per day up to 400mg (around 4 cups of coffee) is recommended. It is not suitable for pregnant mother to have more than 200mg of caffeine per day   . There is still a few beneficial effects of caffeine in the diet including improved alertness and well-being, help in concentration, improve mood and limit depression. But, some will get disturb in their sleeping pattern or rise the anxiety of individuals who are sensitive to caffeine sensitive to caffeine  .
Excessive amount of caffeine will lead to nutrients depletion including vitamin B6 and interfere the absorption of essential minerals (calcium, iron and magnesium) . Lifelong caffeine might prevent the decrease in cognitive level and reduce the risk of stroke and type 2 diabetes as well as Parkinson’s and Alzheimer’s diseases. The coffee and caffeine intake can be part of healthy balance diet even for elderly people as long as it is in the moderate consumption .
Tea is an aromatic beverage prepared by pouring the hot and boiled water over the cured leaves of Camellia sinensis. The common types of tea including the black tea and green tea. It contains bioactive polyphenolic compounds that provide a lot of nutritional values for human health and reduce the risk of cancer. Tea has the anti-oxidative, anti-inflammatory, anti-microbial, anti-carcinogenic, anti- hypertensive, neuroprotective and cholesterol-lowering properties that might help in heart diseases, cancer, diabetes and obesity  .
Moderate consumption of tea is beneficial to health, however, it is recommended to take two cup per day. Exceeding 3 – 4 cups (710ml – 950ml) per day would have negative side effects to our body health . For instance, the compound – tannins found in the tea could reduce the absorption of iron in your digestion tract. Other complications including increase in anxiety, nausea, dizziness and caffeine dependence .
So, coffee or tea?
Both coffee and tea are the two healthiest beverages, second only to the water as reported by The Beverage Guidance Panel . Both are not harmful if the consumption is in moderation. However, overconsumption could lead to side effect and even caffeine dependence if too much of coffee. Thus, it is recommended to have the tea more than coffee as tea has more beneficial effect than the coffee.
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