Fruits. Certain fruits such as oranges, bell peppers, guava, kiwi, tomatoes, and strawberries, contain high amounts of vitamin C. Vitamin C helps prevent brain cells from becoming damaged and supports overall brain health. In fact, a study found that vitamin C can potentially prevent Alzheimer's.
Avocados contain B vitamins, which have been studied for their potential role in brain health because of their role in homocysteine metabolism (5, 8). Elevated homocysteine level is a risk factor for AD and dementia. B vitamins can help to lower homocysteine levels (47).
Some studies have shown that a Mediterranean diet rich in fruits, vegetables, whole grains, beans, nuts, olive oil and fish may be beneficial after brain injury. This is based on research suggesting it helps to maintain cognitive function as people age.
Lucky for us avocado lovers, avocados are one of the rare foods that contain healthy omega-3 fatty acids that are exactly what your brain needs to get rid of that pesky “brain fog” feeling.
Food rich in B vitamins, such as avocados and almonds, have been shown to reduce stress and anxiety.
"The B vitamins, including thiamine, riboflavin, and niacin, have positive effects on the nervous system. Deficiencies of these vitamins have been linked to increased anxiety in some people," explains Godfrey. Avocados are rich in stress-relieving B vitamins and heart-healthy fat that may help to lessen anxiety.
Berries, fish, and leafy green vegetables are 3 of the best foods that fight memory loss. There's a mountain of evidence showing they support and protect brain health.
Best Foods for Preventing Dementia
Food that are rich in carotenoids include carrots, squash, sweet potatoes, bell peppers, tomatoes, papaya, apricots, and leafy greens such as spinach and kale.
Eggs are loaded with choline, a type of B-vitamin that can enhance memory and cognition. It's a component of phosphatidylcholine, a critical part of cell membranes, especially brain cells. To incorporate eggs into your meals, try deviled eggs, but mash the yolks with avocado instead of mayonnaise.
Eating a banana will give your brain the healthy, natural, low GI sugar that it needs during exam time. Plus bananas also make you happy, literally! Bananas contain high levels of tryptophan, an amino acid, which is converted into serotonin in your body.
Avocados
Moreover, avocados also contain tryptophan. Tryptophan is an amino acid that has a powerful impact on mood and mental health. It helps to balance hormones and aids in serotonin production. Consequently, eating foods containing tryptophan improves mood and overall mental stability.
Summary: Adding a handful of blueberries to your daily diet can help reduce blood pressure, improve memory and cognitive function, and boost reaction times.
Eggs. Eggs offer a host of healthy nutrients. As far as brain health goes, egg yolks are a good source of choline, which is associated with reducing inflammation and promoting brain function, like maintaining memory and communications between brain cells.
White Bread and White Rice. Refined carbohydrates, even ones that don't taste super sweet, can spike your blood sugar. That's often followed by a crash, which can make you feel mentally foggy.
Avocados are also rich in folate, which research indicates could aid in reducing symptoms of depression. They also contain a good amount of vitamin K. One observational study found that older adults who consumed more vitamin K in their diets tended to have lower symptoms of depression.