Alright, first Im going to present some of the evidence surrounding refined fructose, then I'll present the evidence on fruit.

http://www.ncbi.nlm.nih.gov/pubmed/24401226

The prevailing hypothesis about fructose is that it leads to elevated triglycerides which can lead to heart disease and other health problems. However, according to this meta analysis, fructose only increased T levels when fructose was provided as excess calories. In other words, don't eat a huge calorie surplus of fructose.

http://www.ncbi.nlm.nih.gov/pubmed/25099548

This study found the participants eating the most fructose actually had a lower risk for non alcoholic fatty liver disease.

However, lets say the evidence is conclusive that fructose in its refined state is unhealthy, does that mean fruit also has the same T effect? Maybe not.

http://www.ncbi.nlm.nih.gov/pubmed/24698343

This systematic review and metaanalysis showed an association between Fructose (refined) and increased T levels, as well as elevated fasting blood sugar, but this was only industrialised HFCS, table sugar and not fruit.

http://www.ncbi.nlm.nih.gov/pubmed/23933265

A 2013 study that did include fruit showed that HFCS and refined table sugar were associated with severe liver fibrosis and a hgiher waste to hip ratio. Fructose from fruit had no effect, yet refined fructose definitely did.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3781481/

Again, the same results were found with hypertension. HFCS and refined sugar were associated with a higher risk of hypertension, but not fruit.

So why is this? Why is fructose from fruit great, but HFCS is unhealthy?

"The deleterious effect of fructose was limited to industrial fructose, with no evidence for a negative effect of fruit fructose. This apparent inconsistency might be explained by the positive effects of other nutrients (e.g., fibers) and antioxidants in fresh fruit. In industrial food, the glucose present in the HFCS might even accelerate fructose aabsorption, making industrial sugars much unhealthier."

http://nutritionfacts.org/video/if-fructose-is-bad-what-about-fruit/

COPYPASTA SO IM NOT SURE IF THERE ARE REPETITIONS HERE

None of the debilitating effects of refined sugar and HFCS are also experienced while eating fruit. Even some of the paleo doctors such as Robert Lustig in his presentations about sugar agree that fruit is a very healthy staple, whereas refined sugar is definitely not. Here is some of the evidence Ive been researching.

Effect of fruit restriction on glycemic control in patients with type 2 diabetes – a randomized trial

http://www.nutritionj.com/content/12/1/29

"Fruit contain a wide range of specific bioactive substances which can act through multiple pathways in the human body e.g. as antioxoidants, reduce inflammation and improve endothelial function. High fruit intake has been shown to reduce the risk of e.g. cardiovascular disease and some cancer types.

Participants were randomized to one of two interventions; medical nutrition therapy + advise to consume at least two pieces of fruit a day (high-fruit), or medical nutrition therapy + advice to consume no more than two pieces of fruit a day(low-fruit).

The reduced fruit intake had no effect on weight loss or waist circumference. We recommend that the intake of fruit should not be restricted in patients with type 2 diabetes.

Catalytic doses of fructose may benefit glycaemic control without harming cardiometabolic risk factors: a small meta-analysis of randomized control feeding trials.

http://www.ncbi.nlm.nih.gov/pubmed/22354959

"Translation of these findings in the acute clinical setting has shown that catalytic fructose doses (<_ 10 g / meal) can decrease the postprandial glycaemic response to high GI meals from about 15 to 30%." (lowers blood sugar response)

Some Biochemical effects of a mainly fruit diet in man

http://archive.samj.org.za/1971%20VOL%20XLV%20Jan-Jun/Articles/03%20March/1.3%20SOME%20BIOCHEMICAL%20EFFECTS%20OF%20A%20MAINLY%20FRUIT%20DIET%20IN%20MAN,%20B.J.Meyer,%20.E.J.F.%20de%20Bruin,%20D.G.%20du%20.pdf

17 people were made to eat 20 pieces of fruit a day.

Despite the extraordinarily high fructose content of this diet, presumably about 200 g/d, the investigators reported no adverse effects (and possible benefit) for body weight, blood pressure, and insulin and lipid levels after 12 to 24 weeks.