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Avoid 5 Foods that Weaken Memory and Focus

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We are what we eat!

Across America, people are struggling with mental health issues. Nearly one in five Americans are living with a mental health condition, and the number of people seeking help for anxiety and depression is skyrocketing, reports Mental Health America. According to the organization’s 2021 State of Mental Health in America Report, “suicidal thoughts are increasing among both adults and children, and 9.7 percent of youth is experiencing severe major depression compared to 9.2 percent last year”.

Accumulating scientific research shows that a standard American diet rich in refined sugar and highly processed foods may increase the risk of developing or worsening various mental health conditions. But a nutrient-based diet rich in fresh fruits and vegetables; omega-3 fatty acids; nuts, seeds and legumes; whole grains, fresh herbs and spices; fish and olive oil, may help to support and enhance mental health.

Source: https://mhanational.org/issues/state-mental-health-america

A Harvard nutritionist and brain expert implores Americans to avoid 5 foods that ‘weaken memory and focus’, and increase the likelihood of depression and mental health issues. Dr. Uma Naidoo, a nutritional psychiatrist, brain expert, and faculty member at Harvard Medical School, studied how gut bacteria can trigger metabolic processes and brain inflammation that impact memory.

In her book “This Is Your Brain on Food”, Dr. Naidoo explains which food contributes to our mental health and “how a sound diet can help treat and prevent a wide range of psychological and cognitive health issues, from ADHD to anxiety, depression, OCD, and others”.

Refined sugar is well known for creating chronic inflammation in the body which can cause dysfunction of the immune system.

Existing studies indicate that you “may be able to reduce the possibility of dementia by avoiding foods that can compromise our gut bacteria and weaken your memory and focus”.

The standard American diet (SAD) foods “to avoid or cut back on to fight inflammation and promote brain health, sharp thinking and good decision-making” are:

  1. Refined sugars – a high-sugar or ‘high fructose corn syrup’ diet can lead to excess glucose in the brain, which studies have linked to memory impairments and less plasticity of the hippocampus — the part of the brain controlling memory. Consuming unhealthy processed foods like baked goods and soda floods the brain with too much glucose. And, be aware that refined sugar is “secretly added” to many popular food items like fast food french fries. Furthermore, sugar consumption triggers a cascade of chemical reactions in the body that promote chronic inflammation, according to Psychology Today. A little inflammation can be a good thing, since it can increase immune activity and blood flow to a wound. But in the long term, inflammation is a big problem. It disrupts the normal functioning of the immune system, and wreaks havoc on the brain.
  2. High-glycemic-load carbohydrates – your body processes high-glycemic-load carbohydrates in much the same way it does with refined or high fructose sugar. That means they can also raise your risk for depression. “Better-quality” carbohydrates were defined as whole grains, foods high in fiber, and those ranked low on the glycemic index (GI). The GI is a measure of how quickly foods convert to glucose when broken down during digestion; the faster a food turns into glucose in the body, the higher its GI ranking. Researchers discovered that people who were eating better-quality carbs, were 30% less likely to develop depression than those who were eating high-GI carbs. Low-GI carbs include green vegetables, most fruits, raw carrots, kidney beans, chickpeas and lentils.
  3. Fried foods – for brain health, it pays to reduce the amount of fried foods you eat. In fact, one study found that a diet high in fried foods was linked to lower scores in learning and memory. The likely reason is that fried foods can cause inflammation, which can damage the blood vessels that supply the brain with blood. Another study found that those who consumed more fried foods were more likely to develop depression in their lifetime. If you’re eating fried foods, try enjoying them just once a month.
  4. Alcohol – Archana Singh-Manoux, a research professor and director at the French Institute of Health and Medical Research, and her colleagues reported in the British Medical Journal that “people who had abstained from alcohol completely or who consumed more than 14 drinks per week had a higher risk of dementia compared to those who drank alcohol in moderation”. Thus, the key is moderation.
  5. Nitrates – nitrates are used as a preservative and to enhance color in deli slices and cured meats like bacon, salami and sausage. Nitrates may be also connected with depression.

What you eat does matter. Thus, by avoiding or eliminating these 5 foods from your diet, and by serving healthier, nutrient-rich food options, you can help to alleviate anxiety and depression, stabilize mood and promote mental health and wellness.

“The gut/brain connection helps us understand the food/mood connection,” explains Dr. Naidoo. “The enteric nervous system—that is, the nerves supplying the gastrointestinal tract—totals over 100 million neurons and communicates directly with the brain, or central nervous system, by way of the vagus nerve, which is responsible for our ‘rest-and-digest’ response. 

“It’s also vital to note that the gut contains the highest number of serotonin receptors, and the gut itself produces all the neurotransmitters that are also made in the brain, including serotonin, often called the happiness hormone. In turn, these neurotransmitters are implicated in sound mental health or potential problems when they are deficient.”

Bottomline, cleaning up your diet and eating healthier, nutrient-rich food, in most cases, will only help your mental health and emotional well-being.

Healthy diet, exercise, mindfulness, gratitude and sleep are all holistically important for your brain and mental health.

  1. https://www.nachicago.com/2021/10/29/372020/eat-well-to-feel-well-thanksgiving-fare-that-boosts-mental-health
  2. https://mhanational.org/issues/state-mental-health-america
  3. https://www.psychologytoday.com/us/blog/the-depression-cure/200907/dietary-sugar-and-mental-illness-surprising-link
  4. https://www.cnbc.com/2021/11/28/a-harvard-nutritionist-and-brain-expert-avoids-these-5-foods-that-weaken-memory-and-focus.html
  5. https://umanaidoomd.com