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Tag: vitamin deficiency blood tests

July 12, 2026

Assessing Nutrient Absorption in Digestive Disorders with Key Blood Tests

How blood tests reveal iron, vitamin B12, folate, vitamin D, and mineral deficiencies associated with digestive malabsorption.

Digestive symptoms do not always remain limited to the stomach or intestines. When a digestive disorder interferes with the breakdown or absorption of food, the effects may appear throughout the body as fatigue, anemia, brain […]

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July 1, 2026

Blood Type Diet: What the Evidence Says—and Which Lab Tests Matter

What Science Says About Eating for Type O, A, B, or AB—and Which Blood Tests Can Actually Help Personalize Nutrition

The blood type diet claims that people should choose foods according to whether they have type O, A, B, or AB blood. Supporters suggest that blood type may influence digestion, metabolism, inflammation, weight, and the […]

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