How does food affect your mood?

Birds eye view of a range of fresh fruit and vegetables.

How are food and mental health linked?

The relationship between our diet and our mental health is complex. What we eat and drink affects how we feel, think and behave.

There is no specific diet to treat depression but eating more of some foods and less or none of others can help manage your symptoms by improving your mood, giving you more energy and helping you to think more clearly.

For example, studies have found that healthy eating patterns, such as the Mediterranean diet (lots of veggies, seafood and herbs), are associated with better mental health than “unhealthy” eating patterns, such as the Western diet (processed meat, pre-packaged foods, high fat and dairy products).

What should I eat?

As well as eating your 5 a day (fruits and vegetables), you should also focus on the following to boost your mental health:

  • Complex carbohydrates — this includes; brown rice and starchy, quinoa, millet, beets and sweet potatoes.
  • Lean proteins — this includes; chicken, meat, fish, eggs, soybeans, nuts and seeds.
  • Fatty acids — this includes; fish, meat, plant oils, eggs, nuts and flaxseeds.

If you’re stuck on how to achieve a healthy diet, the NHS website has more information in their Eatwell Guide.

Quick tips

  • Eat breakfast! It’s important to get the day off to a good start.
  • Try and eat smaller portions spaced out more regularly throughout the day.
  • Avoid foods that make your blood sugar levels rise and fall rapidly, such as sweets, chocolate, biscuits, sugary drinks and alcohol.
  • Stay hydrated! If you don’t drink enough fluid then you may find it difficult to concentrate or think clearly (drink at least 6-8 pints a day).
  • Fresh, frozen and tinned fruits and vegetables all count towards your 5 a day!
  • Try and cut down your caffeine intake.

Eating disorders

If you feel you’re using food as a negative coping mechanism to deal with emotional pain or difficult situations then you may have an eating disorder. If so, see a GP as soon as you can. A GP will ask about your eating habits and how you’re feeling, plus check your overall weight and health.

It can be very hard to admit to somebody that you are struggling so it may make things easier if you bring a friend or a family member along.

If you’re still too anxious to meet somebody face-to-face then you can always talk to an advisor over the phone from the eating disorder charity, Beat, by calling their adult helpline 0808 801 0677 or youth helpline 0808801 0711.

Source: 1 Firth J, Gandswisch J E, Borsini A, Wootton R E, Mayer E A. 2020. Food and mood: how do diet and nutrition affect mental wellbeing? BMJ (online)

Related articles

Celebrating 25 Years of Dedication: Lesley Clift’s Journey with Step One

Celebrating 25 years at Step One, Lesley Clift reflects on a career filled with laughter, change, unforgettable moments and a lasting commitment to supporting others.

My week with Step One Charity by Zoe Godfrey

As part of the University of Exeter's Professional Pathways programme, student Zoe spent a week with Step One Charity's Marketing and Fundraising team. In this blog, she reflects on the inspiring people she met, the impact of our BeWell services, and what she learned about working in the charity sector.

Nine Years of Service: Robert Williams Reflects on His Time as Trustee

After nearly a decade supporting Step One Charity as a trustee, Robert looks back on what drew him to Step One, the moments that have stayed with him, and his hopes for the charity's future.
Mental Health Awareness Week 2026 Blog

Mental Health Awareness Week: Taking Action Together

Small actions can make a big difference, discover wellbeing sessions, community events, inspiring stories, and ways to get involved this Mental Health Awareness Week.

15 Years of Impact: Becky Tucker’s Journey at Step One

From hospital discharge to independent living, Becky Tucker has witnessed first-hand the life-changing impact of community mental health support. As she marks 15 years with Step One, she reflects on growth, resilience and the power of teamwork.
Lorna Collingwood-Burke

5 minutes with Lorna Collingwood-Burke

From training as a nurse and midwife in Bath to serving as Chief Nursing Officer for NHS Devon, Lorna Collingwood-Burke has dedicated her career to public service. Now, as Chair of Trustees at Step One, she reflects on leadership, collaboration and the importance of valuing staff.
Sue Sutherland OBE

Supporting Change: Sue Sutherland Reflects on Her Time as Chair

After eight years as Chair of Trustees at Step One Charity, Sue Sutherland has stepped down from the role. During her time as Chair, she helped guide the organisation through significant challenges and important developments.
People walking outdoors

Leave a Legacy of Support: Make a Will Week 2026

Make a Will Week is a chance for local people to get expert legal support when planning for the future. Instead of paying a solicitor’s fee, people are asked to make a donation to Step One Charity.
Field landscape with a sunset

Walking for a Cause: The Journey Behind the 300,000 Steps

Find out all about Rachael's experience during Every Step Counts 2025 and her journey of 300,000 steps!
©️ Copyright 2024 – Step One. Registered Charity Number: 235434 Company Number 393477 in England. X Centre, Commercial Road, Exeter, EX2 4AD. Web Design by The Ambitions Agency