Magnesium (Mg). Guide. A magnesium test checks the level of magnesium in the blood. Magnesium is an important electrolyte needed for proper muscle, nerve, and enzyme function. It also helps the body use energy and is needed to move other electrolytes (potassium and sodium) into and out of cells.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.
Here are the foods from our food nutrition database that were used for the nutrition calculations of this recipe. Calories per serving of Homemade Flour Tortilla's. 65 calories of Whole Wheat Flour, (0.16 cup).
Calories & Fat. Corn Tortillasâ Usually about 70 calories and 1 gram of fat. Keep in mind, sometimes these are a little smaller than flour tortillas. These typically donât have much fiber or protein in them. Flour Tortillasâ These can vary widely. A typical one has about 100-150 calories.