One serving of red pepper contains twice the required daily amount of vitamin C, which helps with healing minor injuries, boosts the immune system and provides a building block for the musculoskeletal system. The same serving size also delivers 17 percent of the daily vitamin B6 requirement, which is important for balancing female hormone levels and fighting infection, and 14 percent of vitamin K, which assists with blood-clotting.
A single serving of green pepper provides 9 percent of the daily manganese nutritional requirements as well as 7 percent of potassium. Manganese helps with strengthening muscles and bones and balances blood glucose levels, while potassium helps muscles function properly and balances water retention.
Green peppers also deliver a number of other vitamins, including vitamin A, beta carotene, lutein, vitamin E, thiamine, riboflavin, niacin, folate, betaine, choline, and pantotehnic acid. Together these vitamins assist with blood cell formation, boost the immune system, improve vision, keep skin healthy, break down carbohydrates, protect organs from disease and cancer, contribute to heart health and encourage proper brain functioning.
Green peppers provide other minerals, such as calcium, iron, magnesium, phosphorous, zinc, copper and fluoride. These minerals strengthen bones and teeth, transport oxygen through the body, moderate heartbeat rhythms, assist with proper nerve functioning, maintain body pH levels and the creation of DNA.
One serving of green pepper has 3 percent of the daily protein requirement. Sweet green peppers also impart a number of amino acids, with glutamic and aspartic acids, serine, lysine, leucine, and threonine being the most abundant. Both proteins and amino acids are the building blocks for organs and muscles.
Green peppers are cholesterol-free and low in both fat and calories. One serving contains 10 percent of the day's dietary fibre, which promotes bowel regularity and helps prevent diabetes and heart disease, as well as omega 3 and 6 fatty acids, which also prevent cardiovascular disease.