You might be surprised that fresh apple juice does not contain any vitamins, calcium or iron. It does, however, give you 240 mg of potassium from an 8 oz. serving. Fresh apple juice also contains 27 g sugar, 27 g carbohydrates and 10 mg of sodium per serving. One serving is 110 calories.
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Fresh carrot juice is a rich source of vitamin A, giving you 903 percent of your daily nutritional value in an 8 oz. serving. It also provides 33 percent of your daily need for vitamin C, 6 percent of your daily calcium and 6 percent of your daily iron. One cup of fresh carrot juice also has 635 mg of potassium, 68 mg sodium, 22 g carbs, 2 g fiber, 9 g sugar and 2 g of protein. One cup has 94 calories.
Meats, vegetables and fruit contain vitamin A, also known as retinol. Vitamin A from carrot juice is in the form of beta-carotene, alpha-carotene and beta-cryptoxanthin. Your body utilizes vitamin A to maintain vision, bone growth, cell division, resistance to disease, reproduction, and maintenance of mucous membranes in the urinary, respiratory and intestinal tracts.
Vitamin C improves brain function by synthesizing neurotransmitters that affect mood, memory and alertness. Vitamin C is an antioxidant that reduces cell damage and is important for healing wounds, as well as repairing the skeletal and muscular systems.
Calcium is a mineral found in your teeth, bones, nerves, tissues, blood and bodily fluids. It is important for you to get enough calcium for strong teeth and a healthy skeletal system. Maintaining healthy calcium levels throughout your life can prevent osteoporosis as you age. Calcium also helps clot your blood, contracts and relaxes muscles, and helps keep your heart healthy.
Many of the proteins and enzymes your body uses contain iron, which plays an important role in moving oxygen through your circulatory system and is essential for cell growth. If you do not get enough iron in your system, you will feel tired, unmotivated and confused, and your immune system will not function properly. Most of the iron in your body is in your red blood cells, where it carries oxygen to your heart and muscles.
Potassium lowers blood pressure and plays a role in controlling muscles and the nervous system. Sodium and potassium work together to balance the water in your body. Your kidneys control your potassium levels. It is unusual to have a potassium deficiency, but if you suffer from diarrhea, alcoholism, are using laxatives or exercise strenuously, you can lose potassium.
- My Fitness Pal: Calories in Fresh-Pressed Apple Juice
- My Fitness Pal: Calories in Raw Fresh Carrot Juice
- Office of Dietary Supplements: Vitamin A and Carotenoids
- Medline Plus: Vitamin C
- Medline Plus: Calcium in Diet
- Office of Dietary Supplements: Iron
- Colorado State University; "Potassium and Health"; J. Anderson et al.; August 2008