Both Vitamin D3 and L-Theanine are popular supplements, each with unique benefits. While Vitamin D3 supports bone health and immune function, L-Theanine is known for its calming effects on the nervous system.
| Feature | Vitamin D3 | L-Theanine |
|---|---|---|
| Primary Benefit | Bone Health & Immune Function | Stress Reduction & Cognitive Enhancement |
| Recommended Dosage (per day) | 1,000 IU | 100-400 mg |
| Common Side Effects | Nausea, Vomiting in overdose | Dizziness or Nausea at high doses |
| Source of Origin | Lanolin & Sunlight | Green Tea |
| Typical Cost per Month (Approx.) | $75 | $60 |
| Suitability for Vegans/Vegetarians | Limited | Good |
