Marco (Godolphin Arabian), sire of Grand National winner Sprig, sire-line grandsire of top National Hunt sire My Prince (sire of 3 Grand National winners and Cheltenham specialist Easter Hero), and broodmare sire of leading National Hunt sire Cottage (sire of 3 Grand National winners), the latter also broodmare sire of Holstein founder Cottage Son.
Vitamin B12 Deficiency Symptoms. Fatigue is a major part of B12 deficiency symptoms (that run down feeling). Excessive breathing during normal activity or light exercise (your out of breath)-when you are low on B12 you need more oxygen in your system to run metabolic pathways hence the extra breathing. Heart arrhythmia.
The main causes of vitamin B12 deficiency include vitamin B12 malabsorption from food, pernicious anemia, postsurgical malabsorption, and dietary deficiency [ 12 ]. However, in many cases, the cause of vitamin B12 deficiency is unknown. The following groups are among those most likely to be vitamin B12 deficient.itamin B12 deficiency is characterized by megaloblastic anemia, fatigue, weakness, constipation, loss of appetite, and weight loss [ 1, 3, 27 ]. Neurological changes, such as numbness and tingling in the hands and feet, can also occur [ 5, 28 ].