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For example, a 3-ounce serving of lean beef or pork, or 1 slice of bacon, contains neither sugar, while chicken and turkey meat is also fructose- and lactose-free. Fish is also a good choice if you're fructose- or lactose-intolerant because fish such as salmon, catfish and many other types also lack both sugars. But many meat and fish dishes prepared with certain sauces or other, sugar-containing ingredients may contain fructose or lactose.
For instance, if you eat cherries for their therapeutic value, 10 sweet cherries or 1 cup of sour cherries contain about 4 grams of fructose. The fructose level of other fruits are listed in the graphic below. So if you had no other sources of fructose 25 cherries would put you at 10 grams of fructose. You would need to eat more than 60 cherries to put you over the limit. My guess is that if you only did this occasionally and did not have insulin resistance this would likely not be a problem.