The One Nutrient Anxious Brains Keep Running Low On

If you’ve ever wished your anxious brain came with a user manual, science may have given you a small but meaningful page. A new meta-analysis from UC Davis Health found that people with anxiety disorders include: Social anxiety disorder, generalized anxiety disorder, panic disorder — Levels of a nutrient called choline in the brain are significantly lower than in people without these symptoms.

This finding is not surprising, but rather practical. It shows that daily food choices can truly be addressed.

Dr. Richard Maddock, a professor of psychiatry and behavioral sciences at the University of California, Davis, and the study’s senior author, spent years using MRI scanners to measure the concentrations of important molecules in living brains. He kept noticing a pattern. Patients with anxiety tended to be deficient in choline.

This observation ultimately led to a formal meta-analysis of 25 studies involving 712 participants. The difference for choline was 8%. For context, the brain is amazingly precise about its chemistry, which makes those margins unusually important.

Dr. Maddock said the choline gap is one of the biggest abnormalities observed in the brains of people with anxiety disorders, noting that the brain normally controls its chemistry so tightly that even an 8% change is unusually significant.

— Translated from UC Davis Health

Choline may be the most important nutrient that most people have never heard of. It was only officially recognized as essential in 1998, and since then researchers have described it as “under-consumed and under-appreciated.” Unlike vitamin D and magnesium, it rarely makes headlines. But your brain, liver, cell membranes, and nervous system all depend on it every day.

What does choline actually do in your brain?

Choline is a water-soluble compound that is intermediate between vitamins and minerals in its processing by the body. The liver produces a small amount, but not enough. The rest must come from food. Think of it as a structural nutrient. It is a core component of the membranes that surround every cell in your body. The brain has a highly complex network of branching neurons constantly communicating with each other and has higher demands on healthy cell membranes than most other tissues.

Choline is also the raw material the body uses to produce acetylcholine. This is a neurotransmitter that plays a central role in memory, learning, muscle control, and mood regulation. A lack of choline can lead to decreased production of acetylcholine, which can have a major impact on daily mood, concentration, and emotional regulation. If you’re already looking for ways to support your brain through your daily food choices, choline is worth your attention.

Does low choline cause anxiety, or does anxiety deplete anxiety?

This is a truly interesting and still open question in research. People who are prone to anxiety may be born with slightly less efficient choline metabolism. Alternatively, the chronic overactive stress response that defines anxiety disorders may cause choline to be burned faster, depleting brain stores over time. Researchers think the answer is probably a combination of both, a feedback loop that can be easily disrupted by knowing it exists.

What is particularly interesting about this relationship is its impact on treatment. Anxiety is most effectively treated with cognitive behavioral therapy. Cognitive behavioral therapy is essentially a learning process in which you become aware of thought patterns and train yourself to react differently. Acetylcholine is directly involved in the brain’s learning and memory systems. If low choline impairs that mechanism, it may help explain why some people are able to finish treatment faster than others, and why working on nutrition alongside treatment is more important than we realized.

If your anxiety tends to be strongest after dark, that pattern may be worth paying extra attention to.

Why almost none of us are getting enough nutrition

This is the part that deserves more attention than usual. Data from the National Health and Nutrition Examination Survey found that only about 6% of women and 11% of men in the United States meet the adequate daily intake of choline. The Linus Pauling Institute at Oregon State University examined national micronutrient data and found that about 91% of Americans have below recommended levels. It’s not a special flaw, it’s virtually universal.

The recommended adequate intake is 425 mg per day for women and 550 mg per day for men. Pregnant women need a little more, 450 mg, but less than 9% actually reach that target. Ironically, choline is especially important for fetal brain development during pregnancy, yet those who need it the most are the ones who get it the least.

One of the main reasons for the widening gap is that choline is primarily found in animal foods. As plant-forward and vegan diets grow in popularity, choline is secretly becoming harder to obtain without conscious planning. While plant sources exist, they tend to be in lower concentrations, so vegetarians and vegans should be especially intentional about including them.

Foods to prioritize

The good news is that you don’t have to drastically change your diet to get choline. Some foods, many of which you probably already enjoy, can make a meaningful difference.

See also

Why salmon is a smart masterpiece

There’s a key detail that elevates the salmon above everything else on this list. Choline appears to enter the brain most efficiently when omega-3 fatty acids, especially DHA, are included in the diet. The two nutrients appear to work together, as omega-3 helps choline cross the blood-brain barrier more effectively. Foods that contain both (salmon, mackerel, and sardines) offer a true 2-for-1 nutritional advantage. For diets low in fatty fish, nutrition researchers suggest combining choline-rich foods with omega-3 supplements to maximize absorption.

Salmon is also one of the most effective foods for lowering blood pressure, another reason for its reputation as a nutritional powerhouse.

What this study doesn’t mean

It would be easy to read these research results and think that eating more eggs will reduce your anxiety. That’s not what the science says, and it’s worth saying outright. Anxiety disorders are complex conditions influenced by genetics, life experiences, sleep, stress, and brain chemistry, and no single nutrient can fully address them. Colin is part of a bigger picture.

This study is a reminder that nutrition is an understudied variable in mental health, and that the food we eat every day has more to do with brain function than most of us realize. For those who are already working with a therapist or doctor to manage anxiety, incorporating stress reduction into daily life alongside nutrition is a practical starting point. For others, eating eggs and not removing the yolks is a solid motivator.

Interestingly, choline isn’t the only overlooked factor that may secretly influence anxiety levels. Recent research has also shown that the atmosphere in your home is associated with increased anxiety. This is another everyday variable that most people don’t think to consider.

Notes about this article: This article is of general health interest and should not be read as medical advice. If your anxiety is affecting your daily life, please consult a qualified health care provider. Dietary changes are best made in consultation with your doctor or registered dietitian.