Last month we ran an exposé about the seemingly innocent glass of orange juice on your breakfast table. From the processing that removes all the flavor (but allows storage of the juice for up to a year) to the chemicals they use to restore that flavor, it was apparently an eye-opener 
for a lot of people… the article was one of the most popular we’ve run! We know a good thing when we see it, so this month we bring you Part II of the Shocking Truth About Orange Juice!
(By Dr. Joseph Mercola, reprinted from Mercola.com)
Why I Don’t Recommend Fruit Juices
While oranges and fresh squeezed orange juice can be a good source of vitamins and other nutrients, it’s also very high in fructose. In fact, one eight-ounce glass of orange juice has about eight full teaspoons of sugar and at least 50 percent of that sugar is fructose. That’s almost as much as a can of soda, which contains approximately 10 teaspoons of sugar.
So one eight-ounce glass of orange juice will wallop your system with 25 grams of fructose, which is more than you should have the entire day. Since fructose is loaded into just about every processed food, it would be very difficult to avoid exceeding your daily fructose limit of 25 grams per day. Additionally fruit juice is far worse than the whole fruit, especially if it is not freshly juiced and is stored in containers, as the methanol in the juice will dissociate from the pectin and actually increase your risk of M.S.
Fructose has been identified as one of the primary culprits in the meteoric rise of obesity and related health problems, and while the majority of the problem is caused by the large quantities of high fructose corn syrup (HFCS) added to so many processed foods and beverages, naturally-occurring fructose in fruit is also best avoided if you’re struggling with stubborn weight issues or any of the diseases I just listed.
When the sugar is combined in its natural form in the whole fruit it causes far less of a problem, as the fiber tends to slow its absorption and prevents over consumption. But once you remove the fiber, you end up with a different product. Additionally, a lot of the antioxidants are also lost in the process—especially if it has been pasteurized, which most store bought juices are.
Therefore, as a general recommendation, I suggest avoiding fruit juices as much as possible, as they will spike your insulin to a far greater degree than a piece of whole fruit. As an illustration of the difference between whole fruits and fruit juices, one 2008 study concluded that:
“Consumption of green leafy vegetables and fruit was associated with a lower hazard of diabetes, whereas consumption of fruit juices may be associated with an increased hazard…”
As a standard recommendation for the average person, I advise keeping your total fructose consumption below 25 grams per day, with a maximum of 15 grams of fructose from whole fruit. However, if you’re overweight or have any of the related health issues mentioned above, you’d be well served to cut that down to a total of 15 grams of fructose a day, including that from whole fruit. The table on the following page can help you calculate your fructose from fruit consumption.
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Health Dangers of Excessive Fructose Consumption
Numerous studies have linked high sugar/fructose consumption to a long list of health problems. Not only will fructose raise your insulin to chronically high levels over time, it also metabolizes differently from other sugars. Both of these facts significantly contribute to the creation of chronic diseases. Thanks to the excellent work of researchers like Dr. Robert Lustig, and Dr. Richard Johnson, we now know that fructose:
Is readily metabolized into fat
- Tricks your body into gaining weight by fooling your metabolism, as it turns off your body’s appetite-control system. Fructose does not appropriately stimulate insulin, which in turn does not suppress ghrelin (the “hunger hormone”) and doesn’t stimulate leptin (the “satiety hormone”), which together result in your eating more and developing insulin resistance.
- Rapidly leads to weight gain and abdominal obesity (“beer belly”), decreased HDL, increased LDL, elevated triglycerides, elevated blood sugar, and high blood pressure—i.e., classic metabolic syndrome. For example, in one study, eating fructose raised triglyceride levels by 32 percent in men.
- Over time leads to insulin resistance, which is not only an underlying factor of type 2 diabetes and heart disease, but also many cancers.
- Contributes to the development of gout by increasing the levels of uric acid in your body. In one study, published last year, women who drank 12 ounces or more of orange juice a day doubled their risk of gout, and those who drank just six ounces of juice per day still increased their risk by 41 percent. A similar study on men was published in 2008. In that study, men who drank two or more sugary soft drinks a day had an 85 percent higher risk of gout than those who drank less than one a month. Fruit juice and fructose-rich fruits such as oranges and apples also increased the risk.
This is why I recommend paying equal attention to the fructose consumed in the form of fruit juices and even whole fruits, and not just that from soda and processed foods.
The Smoking Gun that Confirms Fructose as Major Health Hazard
The last bullet in particular is worth expounding on a little bit more. I became fully aware of the dramatic and devastating impact fructose has on your uric acid levels when I interviewed Dr. Richard Johnson on this topic, last year. As it turns out, elevated uric acid levels is a MAJOR component of several chronic diseases that have also been linked to fructose consumption, such diabetes and heart disease, just to name a couple. Lo and behold, recent research indicates that fructose is the ONLY type of sugar that will raise your uric acid levels, which really strengthens the theory that excessive fructose consumption is at the very heart of most, if not all, of these diseases.
In fact, it is the specific pathways used to metabolize fructose that generates the production of uric acid (fructose typically generates uric acid within minutes of ingestion). These pathways are entirely different from those used by glucose, and other sugars.
According to Dr. Johnson’s research, uric acid appears to take on a lead role in creating health problems when it reaches levels in your body of 5.5 mg per dl or higher. At this level, uric acid is associated with an increased risk for developing high blood pressure, as well as diabetes, obesity and kidney disease. He believes the ideal range for uric acid lies between 3 to 5.5 mg per dl, so getting your uric acid levels tested can further help you determine just how strict you need to be with limiting your fructose consumption.
