6. Bone Density
There is research that indicates drinking a lot of soda can contribute to weaker bones. Normally, bones are made of a compound known as calcium phosphate. If commercials are any indication, milk is an excellent source of calcium; soft drinks, on the other hand, are not. An increased preference for soda as the beverage of choice means other, more nutrient-rich drinks (milk included) are consumed, leading to a depletion of important minerals. Soda may be high in phosphate, but without a reliable source of calcium, the bones grow weaker than they would be with an adequate supply of both minerals.
5. Kidney Complications
The job of filtering out wasted, excessive, or harmful elements falls upon the kidneys. They filter the blood to ensure that the body is running smoothly. However, when there is a constant excess of certain substances, most notably alcohol, sugar, or salt, it is possible for the kidneys to become overworked and otherwise suffer damage. This is especially true in the case of diabetics, whose inability to properly regulate blood sugar leaves excess glucose in the blood that must then be handled by the kidneys. Other kidney complications include kidney stones, which are about 20% more likely among soda drinkers.Related: Are your Kidneys Stoned?
4. Liver Complications
Like the kidneys, the liver plays a role in filtering the blood, though it deals more with digestion than the circulatory system itself. However, because of this shared role, the liver can also fall victim to problems caused by excess sugar. Because fructose, the sugar used in most soft drinks, is not as regulated by the metabolism like other sugars, it can build up much faster than say, glucose does. This creates a chain reaction in the liver that leads to the production of triglycerides and fatty acids. This might cause damage to the liver in the form of cirrhosis.