Digestive Enzymes After 40: Do You Need Them, and Which Ones Work?

The Enzyme Decline of Aging

Your body produces dozens of digestive enzymes that break down food into absorbable nutrients. Amylase breaks down carbohydrates; proteases break down proteins; lipase breaks down fats; lactase breaks down lactose in dairy. After 40, the production of many of these enzymes declines, which can contribute to incomplete digestion, nutrient malabsorption, and the bloating, gas, and discomfort that many women experience after meals.

Lactase: The Most Common Deficiency

Lactase deficiency — the inability to fully digest lactose — is the most common enzyme deficiency and becomes increasingly prevalent after 40. Symptoms include bloating, gas, abdominal cramps, and diarrhea after consuming dairy products. Lactase supplements (available as Lactaid and generic equivalents) taken with dairy-containing meals are highly effective and well-supported by clinical evidence. Alternatively, choosing lactose-free dairy products or non-dairy alternatives eliminates the issue entirely.

Broad-Spectrum Digestive Enzymes

Broad-spectrum digestive enzyme supplements contain a combination of amylase, protease, lipase, and sometimes additional enzymes like cellulase (for plant fiber), alpha-galactosidase (for legumes and cruciferous vegetables), and lactase. They are taken with meals and can help reduce bloating and gas, particularly after large or complex meals.

The evidence for broad-spectrum enzyme supplements is less robust than for lactase specifically, but they are generally safe and many women report meaningful symptom improvement. They are particularly worth trying if you notice that bloating and gas worsen after specific types of meals (high-protein, high-fat, or high-fiber). Combine digestive enzymes with probiotic supplementation and magnesium glycinate for comprehensive digestive support, as outlined in our gut health protocols.