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Fibromyalgia in Women: Healthy Diet Linked to Better Mental Health

Fibromyalgia in women is associated with widespread musculoskeletal pain and other comorbidities that affect physical and mental health and quality of life. A recent study examines whether a healthy diet is associated with better mental health among women with fibromyalgia.

Fibromyalgia is a syndrome characterized by generalized musculoskeletal pain that is often comorbid with other conditions such as chronic fatigue syndrome, anxiety, depression, migraines, and obesity. Although there is no cure for fibromyalgia in women, recommendations for treatment focus on a multi-faceted approach to address physical and mental health symptoms and psychosocial issues that negatively impact

Fibromyalgia is a syndrome characterized by generalized musculoskeletal pain that is often comorbid with other conditions such as chronic fatigue syndrome, anxiety, depression, migraines, and obesity. Although there is no cure for fibromyalgia in women, recommendations for treatment focus on a multi-faceted approach to address physical and mental health symptoms and psychosocial issues that negatively impact the quality of life. Dietary intervention may improve overall well-being and quality of life among those who suffer from fibromyalgia, but research has yet to test this proposition.

Assessing Dietary Habits and Mental Health

To address this gap in the literature, a group of researchers in southern Spain conducted a cross-sectional study to assess the dietary habits of women with fibromyalgia and the relationship between dietary habits and mental health, depression, and optimism. Their study was published in the Journal of the Academy of Nutrition and Dietetics. They recruited 486 women with fibromyalgia to participate in the study. The participants provided sociodemographic information and information on their dietary habits for the previous year using a food frequency questionnaire to indicate the frequency of consumption of 34 foods by food groups. Consumption was categorized as low (never to one serving a week), moderate (2-5 servings a week), or high (daily or near daily frequency). The women also completed surveys that measured optimism, depression, and mental health-related quality of life including vitality, mental health, social functioning, and emotional role functioning.

The average age of the women in the sample was 52 years and about 73% were overweight or obese. Twenty percent reported following a diet since their fibromyalgia diagnosis. More than half of the sample indicated high consumption of fruit, dairy products, cereals (bread, pasta, potatoes), and olive oil and moderate consumption of vegetables, pulses, eggs, and meat. The majority of women also reported low consumption of cured meats, sweets, sweetened and alcoholic beverages, butter or margarine, and mayonnaise.

Next, the researchers examined associations between levels of consumption of the various food groups and mental health. Women who reported high consumption of fruit and vegetables and moderate consumption of fish had better mental health-related quality of life, less depression, and higher levels of optimism. Moderate consumption of dairy products was also associated with more optimism. In contrast, women who consumed cured meats and sweetened beverages daily or almost daily were more depressed and less optimistic. For all analyses, these women had higher or lower mental health scores compared to at least one of the other two consumption groups.

When the mental health-related quality of life score was analyzed based on the separate components (vitality, mental health, social functioning, emotional role functioning), high consumption of fruit was associated with higher social and emotional role functioning and better mental health, while high consumption of vegetables was linked to higher levels of mental health and vitality. Women who consumed a moderate amount of fish had better social and emotional role functioning and mental health.

Study Limitations

This study was limited by a cross-sectional design, which cannot establish cause-and-effect. Reverse causation is certainly possible, as women with better mental health to begin with might make healthier food choices. Conversely, those with poor mental health may be more likely to eat unhealthy foods. It is also limited by reliance on self-reported dietary habits, which can be difficult to accurately recall. Additional studies with longitudinal designs and more diverse samples are needed to establish relationships between diet and mental health among individuals with fibromyalgia.

Healthy Diet Linked to Better Mental Health

Although the researchers did not examine the mechanisms through which diet influences health in women with fibromyalgia, a diet rich in fish and fruits and vegetables might positively influence mental health through actual physiological pathways.  This important study demonstrates that some of the mental health symptoms associated with fibromyalgia in women may be moderated with a healthy diet.

 

Written by Suzanne M. Robertson, Ph.D

Reference: Ruiz-Cabello, P., et al. “Association of dietary habits with psychosocial outcomes in women with fibromyalgia: the al-Andalus project.” Journal of the Academy of Nutrition and Dietetics 117.3 (2017): 422-432.

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