Trade-offs between anti-aging dietary supplementation and exercise

Area of Science:

• Exercise physiology
• Nutritional biochemistry
• Aging research

Background:

• Moderate aerobic exercise demonstrably extends lifespan and healthspan in adults.
• Exercise enhances blood sugar regulation and muscle mass, potentially improving cognitive function.
• Antioxidant supplements lack proven longevity benefits in humans and may interfere with exercise's positive effects.

Purpose of the Study:

• To investigate the complex interactions between exercise, antioxidant supplements, and omega-3 fatty acids concerning healthspan and longevity.
• To explore potential tradeoffs associated with dietary supplementation in the context of exercise and aging.

Main Methods:

• Review of existing human studies on exercise, antioxidant supplementation (Vitamins C, E, resveratrol, N-acetylcysteine), and omega-3 polyunsaturated fatty acids (PUFAs).
• Analysis of biomolecular interactions, including reactive oxygen species (ROS) signaling pathways.
• Examination of clinical trial data linking omega-3 levels to health outcomes, including cancer incidence.

Main Results:

• Antioxidants may blunt exercise-induced improvements in glucose sensitivity and blood sugar regulation by inhibiting ROS signaling.
• Omega-3 PUFAs exhibit anti-inflammatory effects and may support muscle anabolism without negatively impacting exercise's metabolic benefits.
• A large clinical trial indicated an association between higher omega-3 levels and increased prostate cancer risk, particularly aggressive forms.

Conclusions:

• Dietary supplementation presents significant tradeoffs, potentially counteracting exercise benefits or introducing new health risks.
• Individualized approaches considering medical history and genomics are crucial for optimizing supplement choices alongside exercise.
• Understanding intertwined homeostatic mechanisms is key to navigating supplement use for disease prevention and healthy aging.