Listen in as Dr. Mike provides the answers to a wealth of health and wellness questions. Here you'll find the answers to a wealth of health and wellness questions posed by Healthy Talk fans. Listen in because what you know helps ensure healthy choices you can live with. Today on Healthy Talk, you wanted to know:I still don't understand why you push a multivitamin. You call it a foundational product in your book. But, if I'm eating all organic fruits and vegetables, I think it's overkill. You said in your book that our soils are poor, yet I purchase from a local farmer who takes care of his soil.Dr. Mike thinks it's great that you are eating local, trustworthy, organic foods. In fact, he encourages everyone to buy local foods. However, In Dr. Mike's book, there's a part on ideal daily intake, which is based on a recommended daily intake. This was developed during WWII, when everyone wasn't getting enough nutrients. The current dosing system we use today is to prevent vitamin deficiencies.Most food sources are pretty close to providing the ideal daily intake. Dr. Mike also notes that everyone's recommended daily intake should be personalized and different, because nutritionally, we are not all the same. If you feel you're at a point in your life where you don't need a multivitamin, that's fine.Is there really a difference in water filters? For example reverse osmosis, higher pH, and basic ones? We get water from a well and my iron levels are high so we need a filter.According to the Environmental Working Group, there's a list of water filters which the organization thinks are the best to use. For example, carbon filters are at the very top of the list. You might want to take a look at the site to better determine which filter is best for you.If you have a health question or concern, Dr. Mike encourages you to write him at askdrmikesmith@radiomd.com or call in, toll-free, to the LIVE radio show (1.877.711.5211) so he can provide you with support and helpful advice.