Potatoes' skins come in the colors brown, yellow, pink, red, and purple (sometimes called "blue"). Their flesh may appear white or may reflect the color of the skin.
Potatoes contain glycoalkaloids, toxic compounds, of which the most prevalent are solanine and chaconine. Cooking at high temperatures (over 170 degrees C) partly destroys these. Glycoalkaloids occur in the greatest concentrations just underneath the skin of the tuber, and they increase with age and exposure to light. Glycoalkaloids may cause headaches, diarrhea, cramps and in severe cases coma and death; however, poisoning from potatoes occurs very rarely. Light exposure also causes greening, thus giving a visual clue as to areas of the tuber that may have become more toxic; however, this does not provide a definitive guide, as greening and glycoalkaloid accumulation can occur independently of each other. Some varieties of potato contain greater glycoalkaloid concentrations than others; breeders developing new varieties test for this, and sometimes have to discard an otherwise promising cultivar.
Breeders try to keep solanine levels below 0.2 mg/g (200 ppm). However, when even these commercial varieties turn green, they can approach concentrations of solanine of 1 mg/g (1000 ppm). Some studies suggest that 200 mg of solanine can constitute a dangerous dose. This dose would require eating 1 average-sized spoiled potato or 4 to 9 good potatoes (over 3 pounds) at one time. The National Toxicology Program suggests that the average American consumes 12.5 mg/person/day of solanine from potatoes. Dr. Douglas L. Holt, the State Extension Specialist for Food Safety at the University of Missouri - Columbia, notes that no reported cases of potato-source solanine poisoning have occurred in the U.S. in the last 50 years and most cases involved eating green potatoes or drinking potato-leaf tea.
Canned potato Nutrition Facts: Calories, Carbs, and Health BenefitsTweet
Canned potato is 84.28% water, 13.61% carbohydrates, 1.41% protein, and contains 0.21% fat. One canned potato will give you with 4.764 grams of carbohydrates. It is equal to 3.66 percent of the 130 grams of carbohydrates you need on a daily basis, according to the Institute of Medicine (US). That same in a 100 gram amount, canned potato supplies 60 calories and provides low amounts of essential nutrients, with only Vitamin B6 (pyridoxine) having a good percentage (14.46%) of the Daily Value. So if you have canned potatoes in your diet, it helps your body to produce red blood cells (RBCs) and neurotransmitters, maintain metabolism of fats and carbohydrates into monosaccharides, break down peptides into amino acid monomers so that it can be used in the body and it is effective against mood disorders like depression, because vitamin B6 is responsible for creating neurotransmitters and regulates emotions through hormones like serotonin and dopamineAlzheimer’s disease with the help of other vitaminsanemia. At the same time it contains a good amount of Sodium (14.6% DV).