Hi. My father is 65 years old he lost weight around 8 kgs because of depression and less nutrition in diet doctor prescribed him medicines like starwin methycobal d neurobion b2d osetok2 n these multivitamin once a day he gained weight and his health is great now is it okay to continue multivitamin according to his age which one can be the best? Or should I give him multivitamin on alternate days please help me a small doubt it would make my day and stay safe guys you're the real coronawarriors.