I wish I knew that answer. A couple years ago I was screened and from my vitamin/minerals I am dead. If you subtract 1950 from the given year, you will know my age which now is 62. Most of my life I have taken a decent multivitamin. At 50, when I was diagnosed, I amped up my suspected deficiencies, also I was counselled by a nutritionalist. Man that was a waste. Even though information came from people tuned into CF, things like 50,000IU D sounds good but CF doesn't absorb like it should. It will stiffle calcium and D, but accept D3 and calcium compounds designed for osteoporosis, which in the last 3 years has really nailed me. I have my ownd A,D,E,K that is as much voodoo as science. Several 5K IU D3 with milk smoothie that has chelated calcium is putting at least an image of my bones in a CT scan. There is little point in more details since I changed my vitamin regiment I have only tested for D. It is at the low end of acceptable. Up considerably from when we failed with 50K doses. I am sure this is standard procedure but CF is at least 7,000 years old and you would think it was brain surgery. Nutrition for CFers is vexing to say the least, what CF doctor knows how effective a transdermal gel or patch absorbs compared to oral or injected vitamins, medicines or minerals? Does Creon or other enzymes digest minerals and vitamins. I have a brother who was making shakes and smoothies in the early '60s. A lot of natural supplements require additional processing CFers just can't do without enzyme pills.
Nutrition is yet another subset of expertise each CFer has to become expert in from the perspective of their personal CF presentation. How do I rebuild and reclaim 50 years of malnutrition? I doubt everyone in this forum has an easier malnutrition monster to deal with.
