U will only take if there are any deficiencies otherwise stick to fruits, colorful and green veggies.
There are no repercussions, take them till u need them.
Advantages: today we are hooked to process foods which are lacking in essential minerals and vitamins. So you are left with option of supplements. These will help you fill in nutritional gaps, which are much for our healthy body.
Next Steps
Let me know if you need further help