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Scleritis is painful inflammation of the white outer wall of the eye and can occur with other inflammatory conditions. Understand the connection Scleritis is inflammation of the white outer wall of the eye. It can be painful and may occur …

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CREST is an older name for a pattern of limited cutaneous systemic sclerosis. Understand the connection CREST is an older term for a pattern of limited cutaneous systemic sclerosis. The condition can involve blood vessels, skin, digestion,…

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Your labs are normal. So why do you still not feel normal? Tired. Foggy. Run down. Frustrated. Being told everything looks fine can be reassuring, but it does not always answer every question about how you feel. Sometimes it is wo…

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Everyone talks about MTHFR. But what if that is only one piece of the puzzle? MTHFR helps process folate, while MTR helps recycle homocysteine back into methionine with the help of vitamin B12. Two genes. Different roles. One interco…

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Nutrient referenceSep 23, 2026
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An amino acid used in protein synthesis and other metabolic processes. Also called: Arginine What it does An amino acid used in protein synthesis and other metabolic processes. How supplementation is approached Arginine is considered within…

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An amino acid used in protein synthesis and other metabolic processes. Also called: Asparagine What it does An amino acid used in protein synthesis and other metabolic processes. How supplementation is approached An asparagine finding calls…

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A carotenoid pigment found in some algae and seafood. Also called: Astaxanthin What it does A carotenoid pigment found in some algae and seafood. How supplementation is approached Astaxanthin is an antioxidant pigment, not an essential vita…

Nutrient referenceSep 23, 2026
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A carotenoid that the body can convert to vitamin A. Also called: Beta-Carotene What it does A carotenoid that the body can convert to vitamin A. How supplementation is approached Distinguish plant beta-carotene from preformed vitamin A bef…

Nutrient referenceSep 23, 2026
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Helps enzymes process fats, carbohydrates and amino acids. Also called: Biotin What it does Helps enzymes process fats, carbohydrates and amino acids. Possible deficiency symptoms Rare deficiency may cause hair thinning, rash and neurologic…

Nutrient referenceSep 23, 2026
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Provides structure for bones and teeth and supports muscle and nerve signaling. Also called: Calcium What it does Provides structure for bones and teeth and supports muscle and nerve signaling. Possible deficiency symptoms Long-term low int…

Nutrient referenceSep 23, 2026
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A trace element marketed in supplements; its essential role in humans remains under discussion. Also called: Chromium What it does A trace element marketed in supplements; its essential role in humans remains under discussion. How supplemen…

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