Key Studies:

1. Reduced oxidative stress by 50% (Journal of Agricultural and Food Chemistry)
2. Improved muscle recovery by 20% (Journal of Strength and Conditioning Research)
3. Enhanced cardiovascular health (Journal of Atherosclerosis and Thrombosis)
4. Neuroprotective effects (Journal of Neurochemistry) 

Typical Dosage: 

1. 2-6 mg per day
2. Take with meals for optimal absorption

 Side Effects and Considerations:

1. Generally well-tolerated
2. Rare: stomach discomfort, diarrhea, or allergic reactions
3. Interactions with medications or health conditions (consult a doctor)
4. Quality and contamination: Ensure the product is from a reputable manufacturer

Who May Benefit:

1. Athletes seeking improved performance and recovery
2. Individuals with cardiovascular concerns
3. Those seeking anti-aging and skin health benefits
4. Individuals with neurodegenerative diseases (e.g., Alzheimer’s, Parkinson’s)
5. People with vision problems (e.g., age-related macular degeneration) 

Comparison with Other Antioxidants:

1. Vitamin C: Astaxanthin is more potent and longer-lasting
2. Coenzyme Q10 (CoQ10): Astaxanthin has broader antioxidant effects
3. Omega-3 fatty acids: Astaxanthin complements their anti-inflammatory effects

Food Sources:

1. Salmon (and other fatty fish)
2. Krill oil
3. Microalgae supplements
4. Astaxanthin-rich algae oil