New Delhi, Dec. 17 -- As winter sets in, food choices often shift toward ingredients linked with immunity support to prevent any infections or illnesses - quite a common scenario in the colder months. Sweet potatoes, during this time of the year, are highly sought after for the key nutrients they provide to help the body build its immunity to prevent unwanted health issues tied to winter.

But not all the sweet potato varieties support immunity in the same way. The difference often comes down to colour and the nutrients tied to it. Here's how orange and purple sweet potatoes compare to each other, as both serve a different purpose in your body.

Beta-carotene is a provitamin A compound. Once consumed, the body converts it into vitamin A a...