What Is The Link Between Diet And Mental Illness?

Introduction

The food we eat plays a major role in our physical health and overall wellbeing. But did you know that it can also affect your mental state and mood? This relationship between diet and mental illness is a complex one and cannot be summarised with a few broad statements.

The interaction between food and mental wellbeing can be as simple as quick relief from hunger leading to a better mood. Or as complex as the gut bacteria affecting the chemicals that your brain produces which has a deeper effect on your psychological state. Therefore, your gut is also called as ‘second brain’.

What is the link between diet and mental illness?

Although there is no singular food or dish that can conclusively ‘cure’ any mental sickness, your diet still affects how you feel. Some studies suggest that a diet rich in vegetables, seafood, whole grain, garlic, olive oil and fresh herbs may affect reducing depression symptoms.

Some foods can drastically, but temporarily, affect mood. For example, coffee and chocolate are well-known stimulants.

Caffeine in coffee is a stimulant for the central nervous system, it can help feel charged up and ready for work. Several studies show that people who consume caffeine (mainly through coffee) have a lower risk of mental issues like Alzheimer’s, dementia.
Diet rich in essential vitamins and micronutrients also have a positive impact on cognitive function, learning and memory.

This is just a brief overview, let’s find out the many ways in which diet and mental health are closely intertwined. Keep in mind, this relationship is not easy to study or make unquestionable claims about. But scientists have been studying this link for some time now, so we have some general ideas.

The gut-brain connection

You may know that our food is not only digested by the enzymes our stomach secretes but it is also aided very much by the healthy bacteria in our stomachs. These bacteria are essential for normal digestion.

The microorganisms across our body are collectively known as the microbiome, each person’s microbiome is unique to them. Under this field of study, we learnt that gut bacteria are also heavily involved in the production of neuro-chemicals more directly.

Did you know that most of the serotonin your body makes comes from the gut and not the brain? You may know serotonin as the ‘happy’ chemical and many people who have depression are required to take medication that boosts their serotonin levels. But it is not just serotonin, gut bacteria also help to manufacture dopamine, GABA, norepinephrine and others. These are neurotransmitters that are essential for mental functions like focus, feeling motivated, feelings of reward and anxiety.

The basic factors to understand In diet and mental illness

Sharing brings happiness- One aspect of food is that we typically sit down and share our meals with loved ones. This social activity is a routine that provides us with social and psychological benefits.
Disciplined routine- A healthy diet does not only mean nutritious food, people with an unhealthy relationship with food also need to manage their portion size and meal times. There are many eating disorders. In this way, there is a negative impact on physical and mental health due to poor nutrition.
Nutrition for good health- Nutritious, healthy food is the surest way to maintain good physical health. With a healthy diet, you are also supporting your immune system, muscles and bone.
Must include- Pre and probiotics, curd, fresh fruits and vegetables, whole grains
Must avoid- Deep-fried, processed food, food and beverages with high sugar content, alcoholic beverages.

Conclusion
It may not be the easiest to visibly see the effects of healthy diets on mental illness. That is because both the brain and microbiome are complex systems. But we know that a poor diet is linked to poor mental and physical health, as well as a weaker immune system. Studies have enough evidence to confirm the benefits of good nutrition on mental health and mood. Not to mention, diets that are not balanced, may lead to long-term health issues like diabetes.