The sugar in fruit is highly digestible and because of the fiber in the fruit is absorbed at the perfect rate into the blood. On the other hand, high fructose corn syrup is highly addicting and is a synthetic chemical- and since it is not satisfying your sugar requirements, you always want more.  Raw wild honey is also acceptable.

If you are eating cooked food and your pH is more acidic it is best to eat fruit in the morning unless your metabolic type is vegetairian. Then you will do well eating fruit at night as well. Following the statndar rules of proper food combining: No fruit with animal protien. Wait 3-4 hours beofe or after eating a protine or cooked starch or carb.

Honey - Raw unrefined is acasionally fine. It is packed full of active enzymes.

Agave - While agave syrup does have a low-glycemic index, so does antifreeze -- that doesn’t mean it’s good for you. Most agave syrup has a higher fructose content than any commercial sweetener -- ranging from 70 to 97 percent, depending on the brand, which is FAR HIGHER than high fructose corn syrup (HFCS), which averages 55 percent.

This makes agave actually WORSE than HFCS.

It is important to understand that fructose does not increase insulin levels, which is not necessarily good as what it does do is radically increase insulin resistance, which is FAR more dangerous. You see, it’s okay for your insulin levels to rise, that is normal. You just don’t want these insulin levels to remain elevated, which is what insulin resistance causes.

That is why fasting insulin is such a powerful test, as it is a very powerful reflection of your insulin resistance.

In addition to insulin resistance, your risk of liver damage increases, along with triglycerides and a whole host of other health problems, as discussed in this CBC News video about the newly discovered dangers of high fructose corn syrup. The study discussed in this news report is about HFCS, however, it's well worth remembering that agave contains MORE fructose than HFCS, and in all likelihood, it's the FRUCTOSE that is causing these severe liver problems.