Vitamin A Status

atROH represents the quantitatively major circulating plasma retinoid in serum, but serum atROH does not reflect vitamin A status unless low (<0.35 mmol/l or 10 mg/dl) or unequivocally adequate (>1.1 mmol/l in children and >1.4 mmol/l in adults). Humans show a range of normal serum atROH values, with unknown factors contributing to the individual's normal value, and fever, infection, and/or inadequate intake of other nutrients (e.g., zinc and protein) can depress serum retinol. Liver reserves provide the most reliable measure of human vitamin A status. Noninvasive assessments of liver vitamin A reserves (the relative dose-response and modified relative dose-response tests) measure the amount of dose in serum relative to the original plasma atROH after a small oral dose of marker vitamin A. The larger the proportion of dose that appears in serum, the lower the liver reserves.

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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