Side Effects - Vitamins, NutrientsAmino Acids Overview
Amino Acids Overview Side EffectsMost diets provide more protein than the body needs, causing excess nitrogen to be excreted as urea in urine. The excess nitrogen has been linked in some studies with reduced kidney function in old age. Most, [...] 5-Hydroxytryptophan
5-Hydroxytryptophan Side EffectsDuring the clinical trials described above, some people taking large amounts of 5-HTP experienced gastrointestinal upset (e.g. nausea) or, less often, headache, sleepiness, muscle pain, or anxiety. A substance known as “Peak X” has been found in low concentrations in several over-the-counter 5-HTP [...] Arginine
Arginine Side EffectsFor most people, arginine has so far appeared to be free of obvious side effects. However, longer-term studies are needed to confirm its safety. In a double-blind study, supplementation with 9 grams of arginine per day for six months, beginning within 3 to 21 days after [...] Branched-Chain Amino Acids
Branched-Chain Amino Acids Side EffectsSide effects have not been reported with the use of BCAAs. Until more research is conducted, people with ALS should avoid taking supplemental BCAAs. In one study, supplementation with a large amount of BCAAs (60 grams) caused alterations in the blood levels of tryptophan, phenylalanine, and tyrosine. The changes in the blood levels [...] L-Carnitine
L-Carnitine Side EffectsL-carnitine has not been consistently linked with any toxicity. The body needs lysine, methionine, vitamin C, iron, niacin, and vitamin B6 to produce carnitine. Certain medicines may interact with L-carnitine. Refer to drug interactions for a list of those medicines. [...] Cysteine
Cysteine Side EffectsNo consistent adverse effects of NAC have been reported in humans. One small study found that daily amounts of 1.2 grams or more could lead to oxidative damage. Extremely large amounts of cysteine, the amino acid NAC is derived [...] Phenylalanine
Phenylalanine Side EffectsThe maximum amount of DLPA that is safe is unknown. However, consistent toxicity in healthy people has not been reported with 1,500 mg per day or less of DLPA, except for occasional nausea, heartburn, or transient headaches. When 100 mg of LPA per 2.2 pounds body weight or more was given to [...] Glutamic Acid
Glutamic Acid Side EffectsGlutamic acid is generally free of side effects for the vast majority of people who take it; however, people with kidney or liver disease should not consume high intakes of amino acids without consulting a healthcare professional. Because over stimulation of glutamate receptors is thought to be a possible cause of certain neurological [...] Glutamine
Glutamine Side EffectsNo significant side effects have been reported in glutamine studies. Certain medicines may interact with glutamine. Refer to drug interactions for a list of those medicines. Glycine
Glycine Side EffectsNo clear toxicity has emerged from glycine studies. However, people with kidney or liver disease should not consume high intakes of amino acids without consulting a healthcare professional. Certain medicines may interact with glycine. Refer to drug interactions for a list of those medicines. More: Page 1 | Page 2 | Page 3 | Page 4 | Page 5 | Page 6 | Page 7 | Page 8 | Page 9 | Page 10 | Page 11 | Page 12 | Page 13 | Page 14 | Page 15 | Page 16 | Page 17 | |
