Không tùy tiện sử dụng vitamin B9Acide folic hay còn gọi là vitamine B9.
ặc dù loại chất này đóng vai trò rất quan trọng trong nhiều lĩnh vực, song đáng chú ý nó là cơ sở chính của nhiều coenzyme tại nhiều phản ứng tổng hợp, đó là khả năng tham dự của coenzym này vào quá trình hỗ trợ trưởng thành và phân chia tế bào được giữ vai trò quan trọng trong nhiều mức khác nhau; chẳng hạn như tạo ra những tế bào máu, do vậy khi thiếu acide folic sẽ dẫn tới chứng hồng cầu to.
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