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Any idea how much of a boost the caffeine in your diet is giving you? Caffeine in moderation, between 200-300 mg per day for most healthy people, won’t hurt you. In excess, caffeine can cause irritability, nervousness, anxiety, insomnia, headaches and diarrhea. While the amount of caffeine in your food can vary by brand and preparation method, here are some averages.

Mountain Dew Code Red, for example has about 50% more caffeine than Coke - about 34 mg per 12 ounces.

Chocolate can give you a buzz. An ounce of milk chocolate packs anywhere from 1 to 15 mg, while the dark stuff can range from 5 to 35 mg.

They don’t call ‘em energy drinks for nothing. One 8.5-ounce can of Red Bull will give you 80 mg of caffeine, more than three times the amount in Coke.

chocolate and coffee-flavoured ice creams also contain caffeine — in some cases, about as much as in a cup of coffee!

Think caffeine can only be found in the foods you eat? Some cold medicines and pain relievers contain it as well. Check the label — some may contain up to 100 mg per dose.