Brief Answer:
follow the advises.. maintain a healthy lifestyle..

Detailed Answer:
Dear XXXXXXX welcome to HCM..

Now the answer for your question is neither of them..you don't need to take extra multivitamin supplementation without proper cause..

If you're convinced that your diet is of less nutritional values then the best option is to optimize your diet habit and get replenishment naturally..

At your age, without any significant medical ailments, I wouldn't encourage you to take any of those multivitamins..

Take a proper nutritious diet along with lot of green vegetables, legumes, whole foods with high fiber, yogurt , eggs , fish , chicken(if your non-vegetarian) along with fresh fruits and that'll take care of this..

If you have a got a diet plan service on your portal, use it to obtain a personalized diet chart made by the dietitian so that you can follow it on day to day basis..

With these, include a 30 min out door activities per day (even jogging in park during afternoon will do)..

I hope this will clarify your doubts, if you have any further doubts fell free to ask, i'll be glad to guide you..

Take Care
Regards

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Brief Answer:
Follow the Advises as below..

Detailed Answer:
Dear XXXXXXX Welcome Back..

Now remember, most of the time , canker sore or more commonly known as mouth sore is due to faulty tooth-brush manipulation, so be careful while brushing always use brush with soft bristles..

Yes , vitamin deficiency(specifically Vit-B 12) can cause mouth sores, so if that's the scenario then you may take COBADEX-CZS (not Becosule) Once Daily after breakfast for one month(remember to continue it for a month once started)..

But mainly maintain proper oral hygiene, avoid too much salty and/ sour foods as they tend to aggravate it..

I hope I've cleared your doubts now..

Take Care
Kind Regards

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