Can cane syrup substitue for corn syrup?

No. Cane syrup comes from the sugar cane plant, corn syrup comes from the corn plant. All sugars are sugar, but some affect the body differently depending on how quickly they break down in the body, how they are absorbed/utilized by the body, etc. For example, "high fructose corn syrup" has been shown to cause over 50% more belly fat than other sugars, which is why people are supposed to avoid it. On the opposite side of the spectrum, Agave syrup (from a cactus plant) is one of the lowest foods on the glycemic index (which measures how quickly a sugar breaks down in the body and how much that sugar affect (raises) insulin levels). Sugar is all sugar, but different kinds of sugar can act very differently in the body. Hope that answers your question. :)