If a drug treatment’s efficacy is questionable, the adverse event and safety profile is even more important. As a popular food additive, cinnamon seems safe when consumed at doses of a few grams per day. (1 teaspoon of the powder is about 4.75 grams).  While the trials have been small and short in duration, no significant adverse events have been reported. It is Generally Recognised as Safe (GRAS), as a seasoning and flavoring. However, reversible liver damage has been reported with therapeutic use, due to coumarin, a chemical also present in Cassia cinnamon. Those with liver impairment or dysfunction may be at greater risk of harm. There are no published long-term studies with cinnamon that inform us whether chronic consumption of high doses is safe.
Pramlintide is administered by injection just prior to meals (three times each day) for type 1 diabetes as an additional treatment to mealtime insulin therapy for those failing to achieve desired glucose control despite optimal insulin therapy and type 2 diabetes as an additional treatment to mealtime insulin therapy for those failing to achieve desired glucose control with optimal insulin therapy.

"Perfect glycemic control" would mean that glucose levels were always normal (70–130 mg/dl, or 3.9–7.2 mmol/L) and indistinguishable from a person without diabetes. In reality, because of the imperfections of treatment measures, even "good glycemic control" describes blood glucose levels that average somewhat higher than normal much of the time. In addition, one survey of type 2 diabetics found that they rated the harm to their quality of life from intensive interventions to control their blood sugar to be just as severe as the harm resulting from intermediate levels of diabetic complications.[17]

Although there are several different types of ginseng, most of the promising studies on ginseng and diabetes have used North American ginseng ​(Panax quinquefolius). Those studies have shown that North American ginseng may improve blood sugar control and glycosylated hemoglobin (a form of hemoglobin in the blood used to monitor blood glucose levels over time) levels.​​​

Cinnamon has long been reported as a good source for the treatment of diabetes, due to a study done in 2003 by Khan and associates. 60 people were tested in the group and one third of the group was given a placebo. The end results were very impressive and the overall health of the group was increased with glucose down 18 percent; LDL cholesterol and triglycerides also showed reduced levels. Everyone was excited and the word of using cinnamon spread.
There was a clinical trial conducted at Department of Biochemistry, Postgraduate Institute of Basic Medical Sciences Madras, India that studied 22 patients with type 2 diabetes. It reported that supplementing the body with 400 mg of Gymnema Sylvestre extract daily resulted in remarkable reductions in blood glucose levels, hemoglobin A1c and glycosylated plasma protein levels. What’s even more remarkable is that by the end of this 18 month study, participants were able to reduce the dosage of their prescription diabetes medication. Five were even completely off medication and attaining stable blood sugar levels with Gymnema Sylvestre supplementation alone.
Drugs of this class decrease the absorption of carbohydrates from the intestine. Before being absorbed into the bloodstream, enzymes in the small intestine must break down carbohydrates into smaller sugar particles, such as glucose. One of the enzymes involved in breaking down carbohydrates is called alpha-glucosidase. By inhibiting this enzyme, carbohydrates are not broken down as efficiently, and glucose absorption is delayed.