Stomach aches or abdominal pains can originate from any one of the abdominal organs, including the end of the esophagus, stomach, small and large intestines, liver, gallbladder, pancreas and the appendix, or the kidneys or the spleen. Abdominal pain is common and is often a symptom of a minor illness. The pain may start from somewhere else like the chest or pelvic area. Constipation is a very common cause of abdominal pains.
Processed Foods
Highly processed foods and fast foods can lead to stomach upset and constipation, according to MedlinePlus. Medline recommends avoiding processed or fast foods, like white breads, pastries, donuts, sausage, burgers, potato chips and fries. Instead, choose breads, crackers, pasta, pancakes, and waffles made with whole grains, or make your own.
Carbonated Drinks
Sodas and beer contain carbonated water. They release carbon dioxide gas that can build up in the stomach or intestines and cause bloating, gas and stomach aches. Drinking through a straw can intensify this effect by causing more air to be swallowed.
Milk Products
According to Medical News Today, milk and dairy products may cause some individuals to become constipated with abdominal cramping. This may be due to the high calcium content of these foods as calcium is also known to cause constipation. Ensuring that lots of water and fiber are also consumed in the diet will reduce the constipating effects of dairy foods.


