Category Archives: High-Fat Diet

Can junk food destroy your sense of smell?

iStock_000014140533SmallWe’re all pretty comfortable with the knowledge that junk food is bad for our health. We know that an unhealthy diet has been linked to obesity, diabetes and heart disease. Junk food isn’t just nutritionally vacant, it has known negative health effects that severely debilitate lifestyles and can result in serious medical problems and even death. But are there other problems that can result from the consumption of junk food that we haven’t been aware of?

A new study has revealed eating junk food could increase the risk of a person destroying their sense of smell.

The findings, published in the Journal of Neuroscience, show diet may impact a range of human traits apart from weight.

Dr Nicolas Thiebaud, of Florida State University, said: ‘This opens up a lot of possibilities for obesity research.’

It is the first time researchers have been able to demonstrate a firm link between a bad diet and a loss of smell.

In the six-month study mice were given a high-fat daily diet, while also being taught to associate between an odour and a reward of a drink of water.

Mice given the food were slower to learn the association than a control group given their usual meals.

And when researchers introduced a new fragrance to monitor their adjustment, the mice with the high-fat diets could not rapidly adapt, demonstrating reduced ability to smell.
Fellow researcher Professor Debra Ann Fadool said: ‘Moreover, when high-fat reared mice were placed on a diet of control chow – during which they returned to normal body weight and blood chemistry – they still had reduced olfactory [smell] capacities.

Scientists at Florida State University found links between a high-fat diet and major structural and functional changes in the nasal system

‘Mice that were exposed to high-fat diets just had 50 percent of the neurons that could operate to encode odour signals.’

The team will now begin looking at whether exercise could slow down a high-fat diet’s impact on smell.

They will also investigate if a high-sugar diet would also have the same negative effect.
Funded by the National Institutes of Health (NIH), the study comes at an important time with obesity rates at all time highs throughout the world.

It certainly appears that the effects of junk food reach further than any of us expected. FoodFacts.com can’t help but wonder whether there may be other damaging effects related to junk food consumption that haven yet to be uncovered.

http://www.dailymail.co.uk/health/article-2701382/Junk-food-destroy-sense-SMELL-scientists-warn.html#ixzz39TgEfjmW

Learning difficulties and ADHD may be linked with childhood obesity

FoodFacts.com tries to stay aware of the latest news regarding the growing obesity epidemic and how it affects the health and well being of the population. Today we found an interesting study out of the University of Illinois that highlights a possible link between diets high in fat and conditions that affect children in our country like ADHD and learning disabilities connected to memory.

Both childhood obesity and childhood conditions like ADHD and learning disabilities have been on an upsurge. The researchers involved in this study explored the effects of a high-fat diet (with 60% of its calories derived from fat) versus a low-fat diet with only 10% of calories coming from fat on the behavior of two different groups of one month old mice. Before the mice on the high-fat diet were able to gain any weight from their food consumption, the behavior of the group began to change.

The mice on the high-fat diet experienced an increase in anxiety, evidenced by increased burrowing and wheel running as well as a hesitance to explore available open spaces. Those same mice also developed learning and memory problems. They experienced difficulty negotiating a maize as well as difficulty recognizing objects. When some of these mice were switched over to a low-fat diet, their memory was back to normal in one week’s time.

Some of the mice were kept on the high-fat diet and the memory problems continued for a three week period. At about 10 weeks, their bodies seemed to compensate for the diet – but by that point the mice became obese and developed diabetes. These results suggested to researchers that a high-fat diet could possibly trigger anxiety and memory problems in children.

While the researchers expected that the high-fat diet would encourage inflammation which is associated with obesity, they didn’t see an inflammatory response in the brains of the mice consuming the higher-fat food. What they did find, however, was the initiation of a chemical response that was similar to the responses seen in addiction … the increase of dopamine, which is associated with pleasurable feelings in an addict. The increase in dopamine is felt to have triggered the anxious behaviors and learning difficulties in the high-fat diet group. It was noted that the increase of dopamine in the brain is common to both the ADHD condition as well as obesity.

FoodFacts.com found the information in this study to be very valuable. While we understand that further research must be conducted to clarify these results, and we understand that not every child with ADHD or a learning disability is obese, the study certainly calls into question how diets high in fat affect our children. Let’s continue to be mindful of building healthy nutrition habits for our families and to develop a deeper understanding of how the foods we (and our children) eat affect our health and well being.

Read more: http://www.sciencedaily.com/releases/2013/02/130219121021.htm