Low iron stores (ferritin) and vitamin D3 deficiency in people with celiac disease or non-celiac gluten sensitivity (NCGS) are not random findings. They are a direct consequence of mechanisms that damage the digestive tract.<\/p>\n\n\n\n
In individuals with gluten-related disorders such as celiac disease, consuming gluten triggers an immune response that damages the intestinal villi in the small intestine. Since iron and vitamin D are primarily absorbed in the upper sections of the small intestine, their absorption becomes physically impaired, regardless of how much is consumed through food or supplements.<\/p>\n\n\n\n
Low ferritin is often the first and sometimes the only clinical sign of silent gluten sensitivity.<\/p>\n\n\n\n
Damage to the intestinal lining:<\/strong> Chronic inflammation:<\/strong> Vitamin D is fat-soluble, and its absorption depends directly on the health of the small intestine.<\/p>\n\n\n\n Steatorrhea (poor fat absorption):<\/strong> Synergy with calcium:<\/strong> If supplementation with iron and vitamin D3 does not produce results after 3\u20136 months, testing for gluten-related antibodies or performing a small intestine biopsy should be considered. Without removing the source of inflammation (gluten), the intestinal wall may remain effectively \u201cclosed\u201d to these key nutrients.<\/p>\n\n\n\n Iron in food exists in two forms: heme iron<\/strong> (animal-based, highly absorbable) and non-heme iron<\/strong> (plant-based, lower absorption).<\/p>\n\n\n\n Red meat and organ meats:<\/strong> Seafood:<\/strong> Dark leafy greens:<\/strong> Vitamin C is essential:<\/strong> Avoid absorption blockers:<\/strong> Separate dairy products:<\/strong> Because vitamin D3 is fat-soluble, it is not efficiently absorbed in \u201cempty\u201d intestines.<\/p>\n\n\n\n Fatty fish:<\/strong> Egg yolks:<\/strong> Cod liver oil:<\/strong> Magnesium is a key factor:<\/strong> Take vitamin D with fat:<\/strong>
Even in the absence of severe symptoms such as pain, microscopic damage may prevent iron from entering the bloodstream.<\/p>\n\n\n\n
Inflammatory processes can increase levels of hepcidin, a hormone that blocks the release of stored iron, causing ferritin levels to remain low.<\/p>\n\n\n\n3. Vitamin D3 Deficiency<\/h6>\n\n\n\n
Damaged intestines cannot process fats efficiently. Since vitamin D \u201ctravels\u201d with fats, it may be excreted instead of absorbed.<\/p>\n\n\n\n
Vitamin D deficiency further worsens calcium absorption, which over time may contribute to reduced bone density in people sensitive to gluten.<\/p>\n\n\n\nStrategy for Increasing Ferritin (Iron)<\/h6>\n\n\n\n
What to Eat:<\/h6>\n\n\n\n
Veal or beef liver are among the richest sources of iron. Consuming them once a week may significantly support ferritin levels.<\/p>\n\n\n\n
Shellfish and mussels are extremely rich in iron.<\/p>\n\n\n\n
Spinach, Swiss chard, and nettle (although they contain non-heme iron, they can still be helpful when prepared properly).<\/p>\n\n\n\nTips for Maximizing Absorption:<\/h6>\n\n\n\n
Iron is not absorbed efficiently without vitamin C. Add lemon juice, peppers, or sauerkraut salad to meals containing meat or vegetables.<\/p>\n\n\n\n
Coffee and tea contain tannins that can bind iron and reduce its absorption. Drink coffee or tea at least one hour before or after meals.<\/p>\n\n\n\n
Calcium competes with iron for the same absorption pathways. Avoid combining cheese or yogurt with meals that are your main iron source.<\/p>\n\n\n\nStrategy for Increasing Vitamin D3<\/h6>\n\n\n\n
What to Eat:<\/h6>\n\n\n\n
Wild salmon, sardines, and mackerel naturally contain both vitamin D3 and healthy fats needed for its metabolism.<\/p>\n\n\n\n
Use whole eggs because vitamin D is found primarily in the fatty yolk.<\/p>\n\n\n\n
A traditional and well-known remedy that is one of the richest natural sources of vitamin D3 and vitamin A.<\/p>\n\n\n\nTips for Maximizing Absorption:<\/h6>\n\n\n\n
Vitamin D cannot be converted into its active form without adequate magnesium levels. Include pumpkin seeds, almonds, and dark chocolate (high cocoa content, gluten-free) in your diet.<\/p>\n\n\n\n
If using a vitamin D3 supplement, take it with the fattiest meal of the day (for example, eggs, olive oil, or avocado).<\/p>\n\n\n\n