Thursday, October 17, 2019

Can Your Diet Affect The Way You Think?

This post appeared in WebMD and I though it was worth repeating. Science now is starting to believe that what we eat can be affecting the way we think.  This all gets back to the old  adage you are what you eat. 

What's for dinner? The question is popping up in an unexpected place -- the psychiatrist's office.
More research is finding that a nutritious diet isn't just good for the body; it's great for the brain, too. The knowledge is giving rise to a concept called "nutritional (or food) psychiatry."
"Traditionally, we haven't been trained to ask about food and nutrition," says psychiatrist Drew Ramsey, MD, an assistant clinical professor at Columbia University. "But diet is potentially the most powerful intervention we have. By helping people shape their diets, we can improve their mental health and decrease their risk of psychiatric disorders."
Nearly 1 in 4 Americans have some type of mental illness each year. The CDC says that by 2020, depression will rank as the second leading cause of disability, after heart disease.
It's not just a problem for adults. Half of all long-term mental disorders start by age 14. Today, childhood mental illness affects more than 17 million kids in the U.S.
Recent studies have shown "the risk of depression increases about 80% when you compare teens with the lowest-quality diet, or what we call the Western diet, to those who eat a higher-quality, whole-foods diet. The risk of attention-deficit disorder (ADD) doubles," Ramsey says.

This makes sense to me. The idea of eating foods with nutrients is to give your body the vitamins and minerals it needs to stay healthy and do it's job. I think we forget that the blood carries these nutrients through the body for keep all the organs working properly and the brain is one of these organs and it needs nutrition too. Some if we're eating a high-fat, high-sugar diet like most kids today the brain will be effected. We already know that Trans Fats in your diet will cloud your thinking. So if your not getting the right amount of vitamins and minerals it follows that you might have a hard time thinking clearly.

The affects of your diet happen so gradual that we don't realize what's happening to us.
Just 5 years ago, the idea of nutritional psychiatry barely registered a blip on the health care radar. There had been a few studies examining how certain supplements (like omega-3 fatty acids) might balance mood. Solid, consistent data appeared to be lacking, though. 
But experts say many well-conducted studies have since been published worldwide regarding a link between diet quality and common mental disorders -- depression and anxiety -- in both kids and adults.
"A very large body of evidence now exists that suggests diet is as important to mental health as it is to physical health," says Felice Jacka, president of the International Society for Nutritional Psychiatry Research. "A healthy diet is protective and an unhealthy diet is a risk factor for depression and anxiety.”

3 Ways Diet Impacts Your Mental Health

Here are some more details on how good nutrition impacts brain health:
1. It's crucial for brain development.
"We are, quite literally, what we eat," says Roxanne Sukol, MD, preventive medicine specialist at Cleveland Clinic's Wellness Institute. "When we eat real food that nourishes us, it becomes the protein-building blocks, enzymes, brain tissue, and neurotransmitters that transfer information and signals between various parts of the brain and body."
2. Itputs the brain into grow mode.
Certain nutrients and dietary patterns are linked to changes in a brain protein that helps increase connections between brain cells. A diet rich in nutrients like omega-3s and zinc boosts levels of this substance.
On the other hand, "a diet high in saturated fats and refined sugars has a very potent negative impact on brain proteins," Jacka says.
3. It fills the gut with healthy bacteria.
And that's good for the brain. Trillions of good bacteria live in the gut. They fend off bad germs and keep your immune system in check, which means they help tame inflammation in the body. Some gut germs even help make brain-powering B vitamins.
Foods with beneficial bacteria (probiotics) help maintain a healthy gut environment, or "biome." "A healthier microbiome is going to decrease inflammation, which affects mood and cognition," Ramsey says.
A high-fat or high-sugar diet is bad for gut health and, therefore, your brain. Some research hints that a high-sugar diet worsens schizophrenia symptoms, too.
Certain foods may play a role in the cause of mental disorders, or they may make symptoms worse. A nutritious brain diet follows the same logic as a heart healthy regimen or weight control plan. You want to limit sugary and high-fat processed foods, and opt for plant foods like fresh fruits, veggies, and whole grains. Swap butter for healthy fats like olive oil, too. In other words, try a Mediterranean diet.
It's "an ideal diet for physical and mental health," Jacka says. Recent results from a large trial in Europe show that such an eating plan may also help prevent, and not just treat, depression.
The key is to choose foods that pack as many nutrients in as few calories as possible. Nutrients might be particularly helpful for treating or preventing mental illness are:
  • B vitamins. People with low B12 levels have more brain inflammation and higher rates of depression and dementia. Falling short on folate has long been linked to low moods.
  • Iron. Too little iron in the blood (iron-deficiency anemia) has been linked to depression.
  • Omega-3s. These healthy fatty acids improve thinking and memory and, possibly, mood.
  • Zinc. This nutrient helps control the body's response to stress. Low levels can cause depression. A great source is oysters, which pack 500% of your daily need of zinc but have just 10 calories apiece, Ramsey says. Mussels, which are rich in brain-healthy selenium, are also a good choice.
Also, fermented foods such as kefir, sauerkraut, kimchi, and yogurt with live active cultures, which provide good gut bacteria, may help reduce anxiety, stress, and depression. Fatty fish like salmon and mackerel provide omega-3 fatty acids, vitamin B12, zinc, selenium and other brain boosters. And dark chocolate has antioxidants, which increase blood flow to the brain, aiding mood and memory.
Unfortunately, the Western diet is "extremely low" in these nutrients, Ramsey says. He's working on a new tool called the Brain Food Scale, to be published later this year. It will provide a quick look at the nutrient-to-calorie relationship.

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