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    How Much Caffeine? continued...

    Caffeine can result in restlessness, nervousness, insomnia, and tremors. High amounts can also trigger seizures and abnormal heart rhythm.

    Here are the results of the CR tests:

    Product

    Per Serving

    Size (fluid ounces)

    Cost

    Calories

    Sugars (grams)

    Caffeine (mg)

    5-hour Energy Decaf

    1.9

    $2.00

    4

    0

    6

    FRS Healthy Energy

    11.5

    2.00

    20

    2

    17

    Archer Farms Energy Drink Juice Infused (Target)

    12

    1.80

    80

    19

    55

    Amp Energy

    8

    1.00

    110

    29

    71

    Bawls Guarana

    10

    2.00

    120

    32

    71

    Steaz Energy

    8

    1.33

    90

    23

    72

    Red Rain Energy Drink

    8

    .50

    100

    24

    75

    SK Street Kings 6 Hours of Energy

    2.5

    1.75

    0

    0

    78

    Rockstar Energy Drink Double Strength

    8

    1.00

    140

    31

    80

    Sambazon Organic Amazon Energy

    8

    1.17

    90

    21

    81

    Red Bull Energy Drink

    8.4

    1.75

    110

    27

    83

    Starbucks Doubleshot

    15

    2.50

    210

    26

    88

    Monster Energy

    8

    1.00

    100

    27

    92

    Xyience Xenergy

    8

    1.25

    0

    0

    94

    Nestle Jamba

    8.4

    2.00

    90

    20

    98

    Venom Energy

    8

    1.00

    120

    27

    110

    Guru Energy Drink

    8.4

    2.50

    100

    25

    118

    Arizona Energy

    8

    1.00

    100

    26

    129

    Clif Shot Turbo Energy Gel

    1.2*

    1.00

    110

    12

    133

    Stacker 2 6-Hour Power

    2

    1.50

    0

    0

    149

    Full Throttle

    8

    2.50

    220

    58

    210

    Celsius Your Ultimate Fitness Partner

    12

    1.75

    10

    0

    212

    5-hour Energy

    1.9

    2.00

    4

    0

    215

    Monster X-presso

    6.8

    2.25

    90

    12

    221

    NOS High Performance Energy Drink

    16

    2.50

    220

    52

    224

    Rockstar Energy Shot

    2.5

    2.00

    10

    0

    229

    5-hour Energy Extra Strength

    1.9

    3.00

    4

    0

    242

    Monster Energy, the drink blamed in a lawsuit for the death of a 14-year-old girl and cited in five deaths reported to the FDA, has 92 milligrams of caffeine per 8-ounce serving. That's about mid-range for the energy drinks tested -- but more than the lawsuit alleges the product contains.

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