| Vitamin B12 | Morning | Can give an energy boost; best with or after a meal. |
| Vitamin D3 | Morning/Afternoon | Take with a meal containing fat for better absorption. |
| Vitamin C | Morning | Water-soluble; can be taken on empty stomach but may cause stomach upset for some. |
| Multivitamin | Morning | With food to aid absorption and reduce nausea. |
| Fish Oil (Omega-3) | With meals | Best absorbed with fat-containing meals. |
| Magnesium | Evening | May promote relaxation and better sleep; avoid taking with calcium. |
| Calcium | With meals | Take in smaller doses (≤500 mg) for better absorption; avoid with iron. |
| Iron | Empty stomach | Best absorbed without food; avoid taking with calcium or caffeine. |
| Probiotics | Morning/Empty stomach | Take 30 min before food for best survival through stomach acid. |
| Zinc | With food | Prevents nausea; avoid taking with calcium or iron for absorption reasons. |