Yes white sweet potatoes do have Vitamin A.
All sweet potatoes including white sweet potatoes do contain lots of Vitamin A as well as other nutrients, vitamins and minerals.
White Sweet Potatoes including all sweet potatoes are healthy for you and eating sweet potatoes will improve your health and could prevent some disease and boost your immune system.
Sweet potatoes including white sweet potatoes are lower in calories and starch than regular potatoes are.
So if you need to watch your starch intake then eating white sweet potatoes or other sweet potatoes would be a better option.
So you get the health benefits of sweet potatoes and consume less calories.
That makes white sweet potatoes as well as other sweet potatoes healthy in moderation for weight loss as well.