The brand recommends taking the Vitamin D3 with meal in the evening. 

In general, the best time to take Vitamin D3, ultimately depends on your personal preference and lifestyle. There is no specific scientific evidence suggesting that one time of day is superior to the other for taking Vitamin D3. However, here are some considerations to help you decide:

1. Scheduling and convenience: Consider which time of day works best for you in terms of consistency and convenience. Taking your Vitamin D3 supplement when you're most likely to remember and adhere to your routine can be beneficial. You may find it more convenient to take it in the morning, alongside breakfast or other morning medications, or at night, alongside your evening routine.
2. Interactions with other medications or supplements: If you take other medications or supplements that have specific timing recommendations, it's important to consider potential interactions. Some medications or supplements may require specific timing to optimise absorption or avoid interactions. In such cases, consult with a healthcare professional to ensure proper scheduling of all your supplements and medications.

Vitamin D is a group of fat-soluble vitamins that are important for various functions in the body. 

The two major forms of vitamin D are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). So, basically “vitamin D” is the umbrella term for these two different forms of the vitamin.