8 Reasons to Feed Beef Spleen 1. Potassium – prevents muscle loss 2. Niacin – lowers high cholesterol 3. Riboflavin – benefits energy production 4. Vitamin B12 – regulates the nervous system, reduces depression and stress 5. Iron – boosts red blood cells and fights anemia 6. Zinc – benefits the skin and prevents dandruff 7. Vitamin B5 – converts food into glucose, used to produce energy 8. Vitamin C – boosts the immune system