16

Depends on the type of chocolate. According to the US Department of Agriculture (USDA), a bar of dark chocolate (i.e. 162 grams, or about 6 oz) contains almost as much caffeine as a cup of coffee (resp. 70mg v.s. 95mg). So yes, chocolate does contain a significant amount of caffeine (but just not as much as coffee. You are more likely to ingest more ...


11

There is no convincing evidence that consumption of caffeine or tea leads to dehydration (fluid loss) based on available research. Studies cited below indicate (a) that caffeine is a not a very efficient diuretic, (b) that coffee/tea's diuretic effects are similar to that of water and (c) that moderate caffeine consumption does not lead to dehydration. The ...


10

In most studies, caffeine intake was associated with no significant weight change or a slight weight loss. Caffeine - no weight change 1) Caffeinated Coffee Does Not Acutely Affect Energy Intake, Appetite, or Inflammation but Prevents Serum Cortisol Concentrations from Falling in Healthy Men (The Journal of Nutrition, 2011) Sixteen apparently healthy, ...


9

One study has made an analysis of the effects of caffeine on cognitive performance. See: https://libres.uncg.edu/ir/uncw/f/lothesj2004-2.pdf I didn't read the whole study but it seems that has tested with coffee capsules, placebos and beverages with different amounts of coffee. The results are not totally clear even for the author. Although it is likely ...


9

In February 2013, the FDA issued a warning letter to an importer of caffeine powder. In it, the FDA reports that a number of violations to the FDA standards were observed for several imported ingredients. Further, your firm failed to establish specifications to provide sufficient assurance that products your firm receives from a supplier for packaging ...


7

Fortunately, the study in question, Coffee intake and CYP1A2*1F genotype predict breast volume in young women: implications for breast cancer, is available online. The basic answer is that the study provides no indication of an influence of coffee consumption on breast size. The best summary I found in the paper reads: Our main finding was a significant ...


6

Caffeine on insects That "caffeine kills insects" is an old myth: "I find it considerably interesting and even amusing," said Bussey Professor of Biology Carroll M. Williams. "Caffeine may be an insecticide, but it is not a very powerful agent." The study also determined that caffeine combined with other insecticides increases ...


4

As has been mentioned in both comments and in another answer, 'energy' is a subjective term to use for this. Red Bull cans vary in size, but the European can size (250ml) delivers 112.5kCal of energy. A cup of Starbucks Americano (Grande) coffee contains 72kCal, meaning that in the scientific defintion of 'energy', the Red Bull contains more. The point ...


1

It totally depends on the type of tea, the amount of leaves you use. The average tea bag contains about 2 grams (about a tablespoon) of tea. If you're making loose leaf tea, it's possible you're adding more than that, resulting in a higher caffeine content. Tea generally has less caffeine than coffee. Black teas are generally the strongest, ranging from 20-...


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