I think I can. The confusing statement from Dr. Kelly's article was the following:

"As a general rule, lectins which bind to mannose or n-acetylglucosamine have a strong ability to increase the ability to store fat and decrease the ability to burn fat, while lectins capable of binding with fucose tend to reduce the ability to burn fat. Supplementing your diet with these specific sugars, therefore, is a key component of assisting you to achieve your weight
loss goals."

I understand this to mean that adding the sugars fucose and mannose to your diet give the bad lectins in your diet a chance to agglutinate to them instead of the sugars in your digestive tract. The hope would be that all the lectins agglutinate to these free-floating sugars before they reach the sugars that are part of your digestive tract. I know that everyone has some fucose in their digestive tract, with Os having the most. Thus the damamge is done to free floating sugars which are eliminated from your body with other waste products. Since the digestive tract is not attacked by so many lectins, it has a chance to recover and operate properly. I am not sure how mannose comes into the picture exactly.