If your anxiety spikes without an obvious reason, it’s possible that what you’re eating might be playing a bigger role than you think.
Research continues to show a strong connection between what we eat and how we feel. In fact, according to the National Alliance on Mental Illness, anxiety disorders are diagnosed in over 40 million adults in the U.S. each year, and lifestyle factors can influence how those symptoms show up day to day (1).
That doesn’t mean food is the only cause. However, certain patterns (like unstable blood sugar, poor gut health, or nutrient gaps) can make anxiety symptoms feel more intense or harder to control.
To better support your mental health, it helps to understand how certain foods influence anxiety. Below, we’ll walk through the most common triggers and the dietary patterns that can make a difference in the symptoms of anxiety.
If you are struggling with anxiety, MyWellbrook can help. Book an appointment or contact us today: (833) 712-6294.
Can Food Trigger Anxiety?
Yes. Some certain foods can affect blood sugar, disrupt gut health, and stimulate the nervous system in ways that increase anxiety symptoms.
When your blood sugar spikes and crashes, or your gut is out of balance, your body may respond with:
- Increased irritability
- Racing thoughts
- Heightened stress response
- Even panic attacks in some cases
That’s why diet plays a role, especially for people already dealing with an anxiety disorder.
How Food Can Affect Anxiety
There are a few key ways diet connects to anxiety symptoms:
1. Blood Sugar Fluctuations
When blood sugar drops too quickly, your body releases stress hormones like cortisol and adrenaline, which can intensify anxiety symptoms.
Emerging research points to a connection. Public health experts note that diets high in refined carbohydrates and added sugar can trigger blood sugar spikes followed by crashes, a pattern that’s been linked to worsened mood, irritability, and anxiety symptoms. (2)
Keeping blood sugar stable throughout the day can help reduce these spikes and make it easier to manage anxiety.
2. Gut Health and the Brain
Your gut health is closely tied to your brain through what’s known as the gut-brain axis. In fact, about 95% of the body’s serotonin is produced in the gut, a neurotransmitter that plays a major role in mood regulation. (3)
When gut health is disrupted (whether through poor diet, stress, or imbalances in gut bacteria), it can interfere with how these mood-regulating chemicals function. This disruption has been linked to increased anxiety symptoms and challenges in emotional regulation.
Improving gut health through balanced nutrition and supportive foods can have a meaningful impact on both brain health and overall mental health.
3. Nutrient Deficiencies
Nutrients like B vitamins are essential for maintaining healthy brain function and emotional stability. When levels are low, it can affect energy production, neurotransmitter function, and your ability to cope with stress.
Without adequate intake of these nutrients, it becomes harder for the brain to function efficiently, making anxiety symptoms more noticeable and more difficult to manage.
Top Foods That May Make Anxiety Worse
Let’s take a closer look at common foods that cause anxiety or may contribute to making anxiety worse.
1. Caffeine and Energy Drinks
Caffeine is one of the most common triggers for high anxiety levels. Found in coffee, soda, and especially energy drinks, it can increase heart rate, disrupt sleep, and intensify anxiety symptoms.
In fact, caffeine’s impact has become so well recognized that the American Psychiatric Association has added three related disorders to its list of official diagnoses: caffeine intoxication, caffeine-related anxiety, and caffeine-related sleep disorders.
2. Sugary and Processed Foods
Foods high in processed sugar can cause rapid spikes in blood sugar, followed by crashes. These fluctuations can lead to irritability and heightened anxiety symptoms.
Even some sugar free products may not be helpful if they contain additives that impact gut health or blood sugar regulation.
3. Artificial Sweeteners
Many artificial sweeteners are marketed as healthier alternatives, but they can affect gut health and brain chemistry.
Some research suggests that artificial sweeteners may disrupt the balance of bacteria in the gut. (4)
They may also impact brain health and contribute to worsening anxiety symptoms. Because of their effects on gut health, some people find that limiting artificial sweeteners helps them better manage anxiety.
4. Fried Foods
Heavily processed and fried foods can contribute to inflammation and poor gut health.
A diet high in fried foods may:
- Slow digestion
- Affect blood sugar balance
- Negatively impact brain health
Over time, this can make anxiety symptoms more difficult to control.
5. Foods Linked to Sensitivities
For some people, food sensitivities play a role in how they feel. Common sensitivities include dairy, processed ingredients, and gluten.
When food sensitivities are present, the body may respond with inflammation or digestive issues, which can affect gut health and increase anxiety symptoms.
The Gut-Brain Connection
Your gut health and brain health are constantly communicating. This connection is often called the gut-brain axis.
When gut health is disrupted:
- Neurotransmitter production can be affected
- Mood regulation becomes more difficult
- Anxiety symptoms may increase
That’s why improving gut health can be an important part of how you manage anxiety. Small, consistent changes (like supporting digestion, maintaining balanced blood sugar, and incorporating nutrient-rich foods) can help restore that communication over time.
While diet alone isn’t a complete solution for every anxiety disorder, strengthening your gut health can create a more stable foundation for both brain health and overall mental health, making other treatments and coping strategies more effective.
Certain Foods That May Help Anxiety
While some foods can make anxiety worse, others may support a healthier balance. Here are a few examples of potentially anxiety-reducing foods:
1. Fermented Foods
Foods like yogurt, kefir, and other fermented foods can support gut health by introducing beneficial bacteria.
Improving gut health through fermented foods may help stabilize mood and support brain health.
2. Nutrient-Dense Foods
Foods rich in B vitamins, like leafy greens, eggs, and whole grains, support energy production and brain health, both of which are important for managing anxiety symptoms and reducing inflammation.
3. Balanced Meals
Eating regularly and including protein, healthy fats, and complex carbs can help stabilize blood sugar throughout the day, reducing spikes that may contribute to anxiety symptoms.
4. Herbal Teas
Some herbal teas, like chamomile tea or peppermint tea, can have a calming effect and support relaxation without the stimulating effects of caffeine. This is especially true if you drink them without added sugar.
When It’s More Than Diet
While adjusting your diet and introducing calming foods can help, it’s not always enough on its own.
If you’re dealing with persistent anxiety symptoms or a diagnosed anxiety disorder, food is just one piece of the puzzle. Other approaches, such as talk therapy, medication, or structured metabolic treatment, may be part of a more complete plan.
Long-term dietary patterns, not just individual foods, tend to have the biggest impact on both mental well-being and brain health.
Small Changes That Can Make a Difference in Your Anxiety Symptoms
You don’t need to be perfect with your diet to see improvement.
Start with simple steps:
- Reduce caffeine and energy drinks
- Pay attention to food sensitivities
- Focus on improving gut health gradually
- Aim for balanced meals to support stable blood sugar
Over time, these shifts can help you better experience less anxiety and feel more consistent day to day.
Get Real Answers with MyWellbrook
If you’ve already tried embracing healthy eating and changing your diet, but still deal with ongoing anxiety symptoms, it may be time to look beyond food and get a clearer understanding of what’s driving your mental health.
At MyWellbrook Health Psychiatry, we dive deeper than surface-level fixes. A licensed mental health professional will work with you to evaluate the full picture, including your symptoms, patterns, and daily experiences.
You don’t have to keep trying to figure it out on your own. Real answers and real support are here when you’re ready.
Book an appointment today to discuss your anxiety treatment.
FAQs About Foods That Cause Anxiety
What foods increase anxiety the most?
Caffeine, energy drinks, sugary foods, artificial sweeteners, and fried foods are some of the most common foods that increase anxiety.
Can food sensitivities cause anxiety?
Yes. Food sensitivities, including gluten sensitivity, can affect gut health and contribute to worsening anxiety symptoms.
How does blood sugar affect anxiety?
Fluctuations in blood sugar can trigger stress responses in the body, leading to increased anxiety symptoms and mood changes.
Do artificial sweeteners affect anxiety?
Some artificial sweeteners may disrupt gut health and impact brain health, which can make anxiety harder to manage.
What foods help reduce anxiety naturally?
Fermented foods, foods rich in B vitamins, balanced meals, and calming options like herbal teas may support better mental health and help reduce anxiety symptoms.
Resources
- nami.org/types-of-conditions/anxiety-disorders/
- sph.umich.edu/pursuit/2019posts/mood-blood-sugar-kujawski.html
- pmc.ncbi.nlm.nih.gov/articles/PMC5526216/
- pmc.ncbi.nlm.nih.gov/articles/PMC12564633/