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A natural sunscreen
You probably know PABA as a sunscreen ingredient that protects your skin against ultraviolet rays. But you may not know that it is a minor B complex vitamin, like choline and inositol.
Though PABA, also known as para-aminobenzoic acid, is considered a nonessential vitamin, your body needs it to produce folic acid. It's a popular misconception that ingesting PABA saves your skin against sunburn and other maladies, helps you live longer, treats arthritis, and chases away gray hair. While it makes a fine sunscreen when applied topically, the rest of those points are false.
Unlike some of the minor B vitamins that your body can produce on its own, water-soluble PABA can only be obtained by what you eat.
Quick Facts About Para-Aminobenzoic Acid (PABA)
- There is no RDA, or suggested intake.
- Some foods rich in it are brewer's yeast, bran, brown rice, molasses, organ meats, wheat germ, and whole-grain products.
- No cases of natural PABA deficiency have been reported.
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You May Need More PABA if You Have (or Have Had) Or if You're
- Taking antibiotics or sulfonamides, because PABA may inhibit their function.
What Works Best -- and Worst -- with PABA
- PABA works best with the other B vitamins.
- Absorption is maximized when ingested in a well-balanced vitamin/mineral supplement.
Forms Available
- Individual supplements as para-aminobenzoic acid.
- A constituent of many B complex and multivitamin/mineral preparations.
- A component in topical sunscreen lotions.
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Chemical Forms
- Para-Aminobenzoic Acid (PABA)
Comments on PABA
- Although PABA supplements are available, they are not recommended as they can cause side effects.
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Warnings
Consult a physician before use or do not use PABA if:- You are about to start a high-dose supplement program.
PABA May Have Interactions with
- Antibiotics: PABA decreases the effectiveness of some antibiotics.
- Dapsone: PABA decreases the effect of dapsone.
- Folic Acid: PABA increases the effect of folic acid.
- Procainamide: PABA decreases the effect of procainamide.
- Sulfonamides: PABA decreases the effect of sulfonamides.
- Vitamin C: PABA increases the effect of vitamin C.
Side Effects
- Doses greater than 1 gram may cause many side effects.
Signs of Overdose
- Diarrhea
- Fever
- Jaundice
- Liver damage
- Loss of appetite
- Nausea
- Skin rash
- Vomiting
What to Do in Case of Overdose
- Stop use and contact your physician immediately.
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