Important precautions Hypercalcaemia (high blood calcium) Do not take vitamin D if you have high levels of calcium in your blood or urine, as it can lead to serious complications including kidney damage and heart rhythm issues
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Pivalic acid-containing antibiotics may also produce a secondary L-carnitine deficiency, as may certain chemotherapy agents
The caplet format makes it easy to stay consistent and know exactly how much you are taking each day
About the reviewerView full bio Dr Colin Tidy, MRCGP General Practitioner, Medical Author MBBS, MRCGP, MRCP (Paediatrics), DCH Dr Colin Tidy is an NHS Doctor, based in Oxfordshire
As covered in the previous section, homocysteine rises when B12, folate, or B6 is low