Why It Is Done. A test for magnesium is done to: 1  Find a cause for nerve and muscle problems, such as muscle twitches, irritability, and muscle weakness. 2  Find the cause of symptoms such as low blood pressure, nausea, vomiting, diarrhea, dizziness, muscle weakness, and slurred speech.3  Monitor kidney function.hy It Is Done. A test for magnesium is done to: 1  Find a cause for nerve and muscle problems, such as muscle twitches, irritability, and muscle weakness. 2  Find the cause of symptoms such as low blood pressure, nausea, vomiting, diarrhea, dizziness, muscle weakness, and slurred speech.
Pears pack a nutritional punch! A medium sized pear (about 166 grams) is a nutrient-dense food that contains only 100 calories, and is fat free. A nutrient-dense food is any food that provides vital nutrients (such as vitamins and minerals), but relatively few calories.ear Nutrition. Pears are among the most popular fruits in the world, and itâs no wonder why! They are an excellent source of fiber and a good source of vitamin C for only 100 calories per serving. And, theyâre sodium free, fat free, and cholesterol free. Thatâs a lot of nutrition in one sweet and juicy package!
Just 1 medium Mango provides about a quarter of our daily recommended vitamin C requirement, and 2/3rds of vitamin A. Most of the calories in this fruit come from carbohydrates. Have a look at the calorie chart below. There is information about the Mango calories for the different serving sizes.