Add the salt pork, onion and cayenne; bring to a boil. Reduce to simmer, and cook uncovered for 1-1/2 to 2 hours, or until thickened and creamy. Do not allow to boil. Stir in the bacon fat or butter, taste and season as needed with salt, pepper and Cajun seasoning.
Ferritin is a protein inside cells that stores iron so your body can use it later. It is sometimes used to determine the origin of certain anemic syndromes. You can increase your level of ferritin by consuming folate as a dietary complement or in foods like liver, avocado, orange juice, spinach, etc. Still you should wait till you see your doctor, so they can run more tests and be certain of why it is that you have a low ferritin level.
Increase your intake of mineral rich animal foods including organ meats while reducing high phytate foods. To boost iron absorption, add sources of vitamin C to meals such as fruit and vegetables. Practice meal timing. Minerals are susecptable to phytates only when mixed together in the gut at the same time. Eat small amounts of high phytate foods such as almonds and chocolate between meals as snacks instead of with meals.