Hi Sally - Not recently ,no

But I've been supplementing 2000IU a day for quite a while. Everyone in Canada needs to ,as soon as summer is over.

Re : smoking. My GP thinks I have enough stress right now.
I take Phytoberry by Progressive - a whole body antioxidant.
I eat better than anyone I know. I make shakes every day , eat organic whole grain cereals , white fish, lean meat once or twice a week , nuts and seeds , drink green tea and water with lemon , tons of fruit , plain yogurt with raw honey , etc. I am very active and slim as well.
To say that smoking is keeping me sick is not really accurate.
My body is so accustomed to it after 18 years. I'm under 12 a day and always have been. I have an electronic cigarette that I use often.

The problem with gluten free foods is that if you're not a celiac, these foods are actually packed with sugars and oils. It's in no way healthier than food with gluten. You're also missing the fibre from whole grains .This is In general ,of course.
I worked at a health food store for years , so I'm not just making this up.
The cost is very high as well. So if it's not an allergy issue then there is no point.