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Vitamin A, found in carrots, sweet potatoes, and spinach, supports red blood cell development and complements iron metabolism

A smooth, sore or unusually red tongue (glossitis) and recurrent mouth ulcers can both be linked to a deficiency in vitamin B12 or folate

PMID: 36321586

Foods rich in folate or folic acid include - Dark leafy green vegetables, such as spinach Lentils Eggs Rice Yeast Broccoli However, be careful not to consume too much folic acid from supplements or fortified foods because high levels of it can interfere with the function of vitamin B-12

Some researchers prefer 0.3mL syringes for the early phases when doses are small