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The amount of caffeine in one caffeine pill is equivalent to two cups of coffee. Caffeine pills may be beneficial to students who wish to stay awake for studying purposes. Caffeine pills may be beneficial to people who want to have more energy for exercising in order to lose weight. Caffeine can be ingested in pill form. People who take caffeine pills may have a hard time getting to sleep at night.
In addition, some studies found that even decaffeinated coffee may contribute to modest weight loss, suggesting that substances or factors besides caffeine may play a role in weight loss. The bottom line: Be cautious about using caffeine products to help with weight loss. When used in moderation (400 milligrams or less) by healthy adults, caffeine is generally safe. But too much caffeine might cause nervousness, insomnia, nausea, increased blood pressure and other problems.