What negative effects do cokacola have on the human body?

Some of the research I have done states that Coca-Cola can cause and may be linked to:
Osteoporosis
Tooth Decay,
Obesity,
Fetal brain developement,
Decreases the effect of Penicillin,
Increased risk of high blood pressure,
Increased risk of colo-rectal cancer,
Increased risk of heart disease,
Etc.
The sugar, salt, phosphorus(phosphates), and the caffeine levels in Coca-Cola have been studied and it appears that these negative illnesses come from such high levels of these.
While this subject is very controversial, I don't believe anything has been officially proven. Here are some links about this:

The Health Hazards of Drinking Coca-Cola and other Soft Drinks

Satire: the unauthorized history of Coca-Cola

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