Without fat, carbohydrates and protein, Diet Sprite contains zero calories per serving. According to the nutrition label, Diet Sprite is not a significant source for numerous vitamins, minerals and nutrients such as fiber, vitamin A, vitamin C, vitamin B, vitamin D, calcium or iron.
Causes of Muscle spasms (Muscle jerks): See detailed list of causes below. Muscle spasms (medical symptom): Involuntary movement or contraction of muscles without full control. The list of medical condition causes of Muscle spasms (Muscle jerks) includes: Twitches.
Each myocyte contains many myofibrils, which are strands of proteins (actin and myosin) that can grab on to each other and pull. 1  This shortens the muscle and causes muscle contraction. 2  Therefore, slow twitch fibers are great at helping athletes run marathons and bicycle for hours.