What exactly is it that you think you need to live on from whole grains? They are not inherently evil but they don’t have many nutrients you couldn’t get from other sources. They could be eaten in two weekly small portions without harming you. But grains (especially conventionally grown ones) have no place in multi-portions of a daily human diet. They are a convenience food, grown for their stiff physical properties only. If you avoided all grains you would miss zero nutrition.
Ditto, that!!
You end your post by making a completely false statement. Avoiding all grains cuts valuable and in some cases essential nutrients from your diet. I have heard the exact argument from those who choose to be vegetarians. And many of the vegetarians I have known are intelligent people who have “researched” their dietary choices. Yet within a couple of years most that I have known have experienced major health issues and have been forced to give up their lifestyle.
The health problems people I have known who have cut grains out of their diet, over time have been comparable to those of the vegetarians that I have known. As I mentioned in my previous post to you, even our dog became ill when we didn't include enough carbohydrates in his diet. And dogs have a digestive system that most people assume would allow them to eat a diet made up almost completely of meat.
Can you completely cut grains out of your diet and stay healthy? Obviously with the current crop of fad diets many people seem to do just fine for awhile at least. And there are a small minority of people who have real issues with gluten. We are all different and have different nutritional needs depending on genetics, lifestyle and activity level. But in general it is unwise to cut out a food group with proven health benefits that has been a staple in most societies for the last 10,000 or so years.
When you cut a food group out of your diet the balance of the healthy bacteria in your gut will be altered and your ability to properly digest food will be altered as well. This will tend to have detrimental effects on your overall health.
The people I have known who have cut wheat and other grains out of their diets have had problems with, headaches, hair loss, skin and joint integrity, weight gain, bloating, jitteriness, moodiness, digestive problems and various other issues. But just because they have had problems doesn't mean that you will... so good luck following your diet philosophy.