Para-aminobenzoic acid is a naturally occurring antioxidant. Even though it is not technically a vitamin, it is sometimes called vitamin Bx. Supplementation of PABA is rarely needed because it is found readily in many food sources. PABA counteracts the effectiveness of antibiotics and should not be taken with them. Always consult a physician before taking any dietary supplement.
Para-aminobenzoic acid is not an official vitamin so it currently has no RDA. However, most sources advise you to consume between 30 milligrams (mg) and 100mg of this nutrient each day to take advantage of the health benefits listed above. Therapeutic doses of up to 200mg per day in children and 400mg per day in adults are believed to be safe but you are advised to consult your doctor before consuming large amounts of this nutrient.
Para-aminobenzoic acid has many important functions in the body. As discussed above, it is a powerful antioxidant which keeps the hair and skin healthy. In addition to this, para-aminobenzoic acid assists in the maintenance of intestinal flora (microorganisms that support intestinal health), assists in the utilisation of vitamin B5, helps the body break down and utilise protein and supports the production of red blood cells.
Para-aminobenzoic acid can be found in several types of grains and brans, along with wheat germ, molasses, yeast, and liver. It is also available as a nutritional supplement, but because it is mildly acidic, it can cause stomach irritation. A potassium salt version of para-aminobenzoic acid appears to be better tolerated in humans.
Para-aminobenzoic acid has a protective effect on many parts of the body. It is used as an ingredient in various sunscreens to protect the skin against sunburn, aging, and some types of skin cancer that can be caused by excessive exposure to sunlight. It also aids in the production of red blood cells and folic acid, and is used in the metabolism of certain proteins. It is also believed to play a role in the fertility levels of males, although research on this subject has yet to be conducted thoroughly. There is also anecdotal evidence that oral supplementation with para-aminobenzoic acid can help restore gray hair to a darker color.