Lactose: Nutrition, Pros & Cons
Lactose is a naturally occurring disaccharide sugar found exclusively in mammalian milk and dairy products. It serves as an energy source, facilitates the absorption of key minerals like calcium, and acts as a prebiotic, though it requires the lactase enzyme for proper digestion.
Health conditions
- Caution for Lactose Intolerance [ICMR-NIN, PubMed]
- Good for Gut Health [PubMed]
- Caution for Diabetes [ICMR-NIN, PubMed]
- Caution for Celiac / Gluten Sensitivity [PubMed]
- Caution for Thyroid [PubMed]
Pros
- Enhances the absorption of essential dietary minerals, particularly calcium and magnesium, in the gut. [PubMed]
- Acts as a prebiotic substrate, selectively promoting the growth of beneficial gut bacteria like bifidobacteria and lactobacilli. [PubMed]
Cons
- Can cause severe gastrointestinal distress, including bloating, flatulence, and diarrhea, in individuals with lactase enzyme deficiency. [PubMed]
- Contributes to the daily intake of simple sugars and overall carbohydrate load, which must be monitored by individuals managing blood glucose levels. [ICMR-NIN]
Key nutrients
- Carbohydrates — Composed of glucose and galactose, providing approximately 4 calories per gram of energy.