Caffiene

Most caffiene is consumed in amounts via coffee or tea or soft drinks- even energy drinks.  Its considered safeup to 300 mg a day. (Equivalent to 3 cups of coffee a day-not mugs or paper cups). Caffiene is a stimulant that can help your response time as well as a little mood elevation. Consuming more than 300 mg of caffiene a day may give you the "jitters". Larger amounts (500 mg-600mg) may cause anxiety and sleeplessness- even irritability. It has been around a long time that taking in too much caffiene would cause dehydration because Caffiene is a diuretic. But researchers  have found that  is not true- your body adjusts to the amount of caffeine you take in and drinking caffinated beverages would not cause you to need more water. Caffiene can cause withdrawls- may be crabby, muscle aches and possible miserable feeling for a few days.  People that are not used to drinking coffee or caffiene may be sensitive to supplements that have caffiene in them. -information from www.about.com and web MD

Top 10 things Caffiene can do for you: (just for fun although may be true!)
1)Caffiene increases memory
2)Caffiene mixed with carbs replenishes muscle glycogen concentrations faster after exercise
3)Caffiene can detox the liver and cleanse the colon
4)Caffiene is better than sleep during a long drive
5)Caffiene can stimulate hair growth on balding men and women (I thought my hair grew super fast on ACE!
6)Caffiene relieves post work out pain up to 48%
7)Caffiene helps ward off Alzheimers
8)Caffiene can ease depression by increasing dopamine in the brain
9)Caffiene increases stamina during exercise
10) Caffiene protects against eye spasms.
http://www.energyfiend.com/top-10-caffeine-health-benefits

According to Health Canada's website, the daily maximum safe intake of caffeine varies widely. However, they recommend the following guidelines:
General Population, healthy adults: <400 mg per day
Women of child-bearing age: <300 mg per day
Children: no more than 2.5 mg per kilogram of weight, on average:
10-12 years of age: <85 mg
7-9 years of age: <62.5
4-6 years of age: <45 mg.
Read more: http://wiki.answers.com/Q/What_is_recommended_caffeine_intake#ixzz20t7TAKGX

Ace contains 180 mg in 2 capsules-which is considered one serving.  And over a period of time I have been able to give up diet cokes/pepsi because I don't crave it- I still occasionally get me a large cappuccino cause LOVE THE TASTE but on those days- I make sure to drink a little more water.