In general, the diet has very few side effects. Nausea or constipation are the most common. While these symptoms may occur when a child first starts the diet, they generally improve or disappear with time. A few children may feel sleepy and irritable while adjusting to the diet, however, this, too, will generally pass in time. Two unusual complications are retarded growth due to nutritional deficiency and a buildup of uric acid in the blood, which can lead to kidney stones.

According to Dr. Edward Howell, "cooked, enzyme-free diets contribute to a pathological over-enlargement of the pituitary gland [which in turn] regulates the other glands". Likewise, the human pancreas is grossly hypertrophied in relation to all other members of the animal kingdom. Howell concluded that the massive size of the human pancreas is the result of a pathological adaptation to a cooked food diet.

Meridia patient information lists common side effects of the diet drug such as dry mouth, constipation, and insomnia. Also listed as possible Meridia side effects include: headache, increased sweating, an increase in blood pressure, and an increased heart rate. Accompanying Meridia patient information also warns patients about primary pulmonary hypertension (PPH), a rare and occasionally fatal disease.

Generally, at least two to three weeks are usually required to show marked change. At start you may (not necessarily) feel worse as a result of withdrawal symptoms. After that, a period comes in which one feels better. It is possible that you go through a second dip after which you will gradually feel better day by day. So when evaluating a diet, try it for at least two to three months before switching to another.

The possible side effects of diet pills include gastrointestinal (GI) symptoms which include flatulence, fatty/oily stool, increased defecation, liquid stool, oily spotting, soft stool, abdominal pain, fecal urgency, and flatus with discharge, fecal incontinence, and oily evacuation. Some other side effects include nervousness, insomnia, dizziness and constipation. These symptoms do not last longer. But before taking any diet pills, doctor must be consulted.

No serious side effects have been reported as far as we know. The products we reviewed consist of all-natural ingredients that have not been shown to have any serious side effects.

Among the many thousands who have had tissue implant injections, less than 1% of patients have reported adverse reactions. The precautions we take, including eliciting a patient history and testing for allergy, reduce the likelihood of side effects.