Caffeine, Soda 和巧克力對懷孕的影響

好多準媽媽都問過可不可以吃有caffeine的東西，尤其是巧克力。跟貼的媽媽給的答案都是對的，可沒有太多的數據來支持。(嘻嘻，有考據癖)。 下面是我在網上找到的有關食品 caffeine 含量的兩個reports，大家可以參考。

另外還有research results， 摘錄在下。 如有媽媽願意刨根問底， 可以去 motherisk.org

OB一般建議，如果你要喝coke，每天不要超過one can。 不是塑料bottle。 所以OB認為的安全intake 是< 50mg/day。 至於每天吃幾塊巧克力，你就自己算吧 ：-)

study one
Those who consumed more than 300 mg of caffeine per day were twice as likely to have conception delayed for a year or more.

study two
Another study also linked high caffeine intake to delayed conception, but only in women consuming 500 mg or more (about four cups of coffee) per day.

study three
Caffeine easily passes from mother to fetus through the placenta. A developing fetus may have higher, sustained blood levels of caffeine than its mother because of immature metabolism

Source 1
Item Amount Caffeine
Diner coffee 8 ounces 350 mg
Gourmet coffee 8 ounces 175 mg
Brewed coffee 5 ounces 105 to 115 mg
Espresso single 100 mg
Cappuccino single 100 mg
Instant coffee 6 ounces 57 mg
Decaffeinated coffee 5 ounces 5 mg
Brewed tea 6 ounces 20 to 110 mg
Iced Tea 12 ounces 70 mg
Instant Tea 7 ounces 30 mg
Cola 1 12-ounce can 30 to 56 mg
Diet cola 1 12-ounce can 38 to 45 mg
Non-cola 1 12-ounce can 54 mg
Sprite and 7-Up 1 12-ounce can 0 mg
Chocolate 2 ounces 10 to 50 mg
Cocoa 1 5-ounce cup 4 mg
Diet pills (such as Dexatrim) 1 100 to 200 mg
No-Doz 1 100 to 200 mg
Pain relievers
(such as Anacin, Excedrin) 1 30 mg and up


Source 2:
Product
Caffeine (mg)*

Coffee, grande (16 oz.) Starbucks
550

Caffe Americano, short (8 oz.) Starbucks
35

Coffee, tall (12 oz.) Starbucks
375

Caffe Latte, short (8 oz.) or tall (12 oz.) Starbucks
35

Coffee, short (8 oz.) Starbucks
250

Caffe Mocha, short (8 oz.) or tall (12 oz.) Starbucks
35

NoDoz, Maximum Strength (1), or Vivarin (1)
200

Cappuchino, short (8 oz.) or tall (12 oz.) Starbucks
35

7-Eleven Big Gulp cola (64 oz.)
190

Cola (12 oz.)
35**

Coffee, non-gourmet (8 oz.)
135**

Espresso (1 oz.) Starbucks
35

Excedrin (2)
130

Tea, green or instant (8 oz.)
30**

Maxwell House (8 oz.)
110

Chocolate, dark, bittersweet, semi-sweet
(1 oz.)
20**

Caffe Americano, grande (16 oz.) Starbucks
105

Coffee, decaf, grande (16 oz.) Starbucks
10

NoDoz, Regular Strength (1)
100

Tea, bottles (12 oz.) or from instant mix (8 oz.)
14**

Coffee, instant (8 oz.)
95**

Coffee, decaf, short (8 oz.) or tall (12 oz.) Starbucks
10

Caffe Americano, tall (12 oz.) Starbucks
70

Chocolate, milk (1 oz.)
5**

Caffe Latte or Cappuccino, grande (16 oz.)Starbucks
70

Cocoa or hot chocolate (8oz.)
5**

Caffe Mocha, grande (16 oz.) Starbucks
70

Coffee, decaf, non-gourmet (8 oz.)
5**

Espresso, double (2 oz.) Starbucks
70

Espresso, decaf (1 oz.) Starbucks
5

Water, caffeinated (Edge 2 O), (8 oz.)
70

Tea, decaf (8 oz.)

Anacin (2)
65

Cola (20 oz.)
60**

Mountain Dew (12 oz.)
55

Cola (16 oz.)
50**

Tea, leaf or bag (8 oz.)
50