Although I generally believe in eating real foods to get your nutrition in, there are also times when taking a vitamin is important. In the non-summer months, I take a multivitamin to ensure that I am getting all of the nutrients that I need. I also will take omega-3 fatty acids and sometimes take vitamin D and calcium supplements. Supplements are a good way to literally, supplement the nutrition that you are already getting in your diet. I use different brands of vitamins but one that I do like is the Nature's Best multivitamin.
To summarize, focus on fruits, vegetables, lean proteins and whole grains. To supplement your diet, consider taking a multivitamin to get the nutrition that you need. Also, if you are considering getting pregnant, you should take a multivitamin. The elderly population may need to take more dietary supplements since they are at a higher risk of deficiency for different vitamins and minerals.
Disclosure: This is a sponsored post. All opinions and nutrition information is my own.