Lactose and calcium absorption in postmenopausal osteoporosis

Area of Science:

• Endocrinology
• Bone Metabolism
• Gastroenterology

Background:

• Postmenopausal osteoporosis is a significant health concern.
• Lactase deficiency affects a large portion of the adult population.
• The interplay between lactose intolerance, calcium absorption, and bone health requires clarification.

Purpose of the Study:

• To determine the prevalence of lactase deficiency in postmenopausal women with osteoporosis.
• To investigate the relationship between lactose malabsorption and calcium malabsorption.
• To assess the impact of lactase deficiency on bone mineral density in this population.

Main Methods:

• Study included 46 postmenopausal women diagnosed with osteoporosis.
• Lactose malabsorption assessed through standard diagnostic methods.
• Calcium absorption and bone mineral density (vertebral and forearm) were measured.

Main Results:

• Lactase deficiency was prevalent, found in 54% of subjects.
• Lactose malabsorption was linked to reduced milk consumption.
• No significant relationship was found between lactose malabsorption and calcium malabsorption.
• Bone mineral density did not differ between lactase-deficient and normal lactose-absorbing subjects.

Conclusions:

• Lactase deficiency is common in postmenopausal women with osteoporosis but does not appear to influence calcium malabsorption.
• Bone mineral density is not significantly affected by lactase deficiency in this cohort.
• The findings suggest that other factors may be more critical in the development of osteoporosis in lactase-deficient postmenopausal women.