The two main causes of all humankinds troubles are..# 1 Smoking/booze...# 2 WORRY...( STRESS) ,,The solution to a happy long life ..Well keep your kidneys lungs heart healthy...And DONT WORRY BE HAPPY,,,,

The fact is, NO One Vitamin can cure anything! Anyone who is falsely lead to believe they can go on smoking (even in hot climates where they get lots of vitamin D) is inevitably going to lead them to Respiratory Illness & and likely some form of carcinoma, that can settle anywhere inside the body - not just the lungs!
Your article is agreeable to the unlikelihood of this! http://www.besthealthmag.ca/get-healthy/health/5-myths-and-truths-about-vitamin-d

Another thing is that our food value (Zero to little nutritious value) is less than it should be, given the length of time it takes to ship food from all over the world to one or two locations in our country, to be first packaged and then distributed to various warehouses by truck, then to various stores again by truck, (often frozen or already going bad) and sitting in the receiving dock of the stores, eventually put on store shelves for lord knows how long, before we purchase it and eat it!
Yeah, sounds really appetizing, doesn't it! This is certainly doing NOTHING to help people to be healthier!
CANADIANS - LOBBY YOUR GOVERNMENT, YOUR FOOD ADMINISTRATIONS, HEAD MANUFACTURERS, DRUG ADMINISTRATIONS, PRODUCERS TO GET THE NECESSARY CHANGES IN PLACE. Tell them to stop use fillers and carcinogenic materials in our foods, drugs, beauty & hygiene products! Put a stop to all the additional additives like BHT, malt (molds), excess sugars, salts, syrups, colors/dyes, all the preservatives, carcinogens, smoke, etc., - anything that can some way be inhaled, ingested, applied to humans. Governments should be working toward local sustainability - WORLD WIDE! All local Communities should have large greenhouses with fresh grown fruits and vegetables - year round! Fish from our own waters, not from China Fish Farms.
STOP sending other countries our good food and let us eat the processed crap that is killing us and increasing our health care costs!

Smokers....maybe. But 2nd hand smoke from cigarettes, cigars and the like - stats say it really doesn't matter. The biggest cause of LUNG DISEASE is Wood-burning, in fireplaces, fire-pits, backyard fires - where often household garbage, yard waste, stained and painted fences, shingles and even aerosol cans are disposed of - even if it is not allowed in the backyard fire pit! But people know that there is absolutely no possible way to police it! So, many people, even those who are not aware of it, are seriously damaging their health by these wood-burning and refuse type fires!