Final answer:
Vitamin D and dietary lipids aid in the absorption of magnesium, with dietary factors like bicarbonate, calcium, and potassium playing roles in magnesium homeostasis. A high intake of certain substances can diminish magnesium absorption.
Step-by-step explanation:
The absorption of magnesium is influenced by various dietary components and physiological conditions. Notably, Vitamin D enhances the absorption of both calcium and phosphorus from the intestine by promoting the synthesis of a specific calcium-binding protein. This process facilitates the active transport of calcium across the small intestinal mucosa, which in turn can also support magnesium absorption since magnesium often works in concert with calcium in the body. However, factors such as a high intake of fat, phosphate, calcium, and alkaloids can decrease magnesium absorption. Conversely, the parathyroid hormone has been noted to increase its absorption.
Dietary lipids, as outlined in some references, are known to aid in the absorption of certain minerals including magnesium. The presence of certain dietary components such as bicarbonate also plays a role in maintaining adequate magnesium levels, which is part of the broader homeostasis involving other key elements like calcium and potassium.