Finding authentic resources online is pretty difficult for a starter. There are some websites that come up frequently on search engines; 1. healthline.com 2. livestrong.com 3. medicinenet.com 4. emedicinehealth.com 5. webmd.com 6. nhs.uk My questions are mostly cause-and-effect ones. I am wondering which ones are most reliable and updated. I'd be glad if you could leave a note with your recommendations as why you recommend them. In response to @UsableThought's pointer I jot down the health issues that I've been recently browsing on net; 1. obesity - For this I'm mostly interested in the cons (I have been taking meds and have gained quite a weight) 2. flatulence - Both its causes and effects (a chronic issue) 3. constipation - Causes and effects (a chronic issue, runs in my family) The reason why I'm after this is to better understand my body and make educated decisions. (I want to dig up the biology behind those once I know for sure I have stumbled upon the most accepted list of pros and cons) Note: I'm under the guidance of doctor and asking them a long list of questions is not a option. :) Thank you.