Navigating the hormonal shifts of perimenopause can bring a range of experiences, and for some women, changes in mood and an increased susceptibility to depressive symptoms may be part of this transition. As interest in nutritional support for well-being grows, the role of vitamin D3, often paired with vitamin K2, in supporting mood has become a topic of discussion.
This article will explore the current understanding of vitamin D3’s potential connection to mood, particularly in the context of perimenopause. We’ll review findings from research studies to provide an evidence-based perspective on whether supplementing with vitamin D3 might be a helpful consideration for women experiencing mood changes during this life stage.
The Role of Vitamin D in the Body and Brain
Vitamin D is a fat-soluble vitamin that plays many roles beyond its well-known function in bone health. Receptors for vitamin D are found throughout the body, including in areas of the brain that are involved in mood regulation [1]. This widespread presence suggests that vitamin D may have a broader impact on physiological processes, including those that influence mental well-being.
While often referred to as a vitamin, D3 is actually a prohormone that our bodies can produce when skin is exposed to sunlight. However, factors like geographical location, time of year, skin pigmentation, and lifestyle can affect the amount of vitamin D produced this way. Dietary sources are limited, making supplementation a common way to maintain adequate levels, especially for those with insufficient sun exposure.
Vitamin D Levels and Depressive Symptoms in Women
Research has explored the relationship between vitamin D status and depressive symptoms in women across different life stages. A systematic review with meta-analysis published in 2024 examined serum vitamin D levels and their association with depression or anxiety in adult women during the ante- and postnatal periods. This review aimed to synthesize existing evidence on this specific population [2].
Another review from 2020 specifically focused on vitamin D and depression in women, highlighting the potential connections observed in various studies [1]. While these reviews indicate a general interest and some observed associations, it’s important to note that observational studies can suggest correlations but do not definitively prove that low vitamin D causes depression, or that supplementation will resolve it.
Perimenopause, Mood Changes, and Vitamin D
Perimenopause is characterized by fluctuating hormone levels, which can contribute to a range of symptoms, including mood swings, irritability, and depressive symptoms. Research aimed specifically at whether vitamin D supplementation resolves perimenopausal depression is thin rather than absent: a systematic review and meta-analysis in Menopause pooled placebo-controlled trials of nutritional interventions in women during and after the menopausal transition and did find a small but statistically significant benefit for depressive symptoms, though it pooled several different nutrients rather than isolating vitamin D [6]. That evidence is set out in full further down, alongside the broader adult research on vitamin D and mood.
A systematic review from 2024 looked at the impact of nutrition and possible supplementation on the deficiency of various nutrients, including vitamin complexes, in relation to increased morbidity in women after menopause [3]. While this review covered a broad range of nutrients and health outcomes, it underscores the importance of nutritional status in postmenopausal health, which may extend to perimenopausal well-being. The complex interplay of hormones and nutrition during this transitional period means that a holistic approach to health is often beneficial.
Evidence on Vitamin D Supplementation and Depressive Symptoms
Several studies have investigated whether supplementing with vitamin D can influence depressive symptoms. A systematic review and meta-analysis of randomized controlled trials published in 2023 assessed the effect of vitamin D supplementation on depressive symptoms in adults. This type of meta-analysis pools data from multiple rigorous studies to provide a more comprehensive picture [4].
Another randomized controlled trial, the VITAL study, examined the effects of vitamin D3 and marine omega-3 fatty acids supplementation on the indicated and selective prevention of depression in older adults. Results from a sub-cohort of this trial were published in 2023 [5]. While these studies offer valuable insights into the general adult population and older adults, specific research directly targeting perimenopausal women with depressive symptoms and vitamin D supplementation is thinner than the general-adult literature, but it is not absent. A 2022 systematic review and meta-analysis in Menopause pooled 32 placebo-controlled trials of nutritional interventions in women during and after the menopausal transition and found a small but statistically significant pooled benefit for depressive symptoms (standardised mean difference -0.35, 95% CI -0.68 to -0.03), while cautioning that heterogeneity and risk of bias leave the effect of any single nutrient unclear[6].
It’s worth noting that while some studies show promising associations, others have not found a significant impact. For example, an earlier randomized controlled trial from 2011 explored the effect of annual high-dose vitamin D3 on mental well-being and found no significant impact [7]. This highlights that the evidence can be mixed, and the effects may vary depending on individual factors, baseline vitamin D levels, and the specific population studied. The World Federation of Societies of Biological Psychiatry (WFSBP) and Canadian Network for Mood and Anxiety Treatments (CANMAT) Taskforce provided clinician guidelines for the treatment of psychiatric disorders with nutraceuticals and phytoceuticals, which may include vitamin D, in 2022, indicating an evolving understanding of these compounds in mental health support [8].
Considering Vitamin K2 Alongside Vitamin D3
While the primary focus of this article is on vitamin D3 and mood, it’s common to see vitamin D3 supplemented alongside vitamin K2. Vitamin K2 is known for its role in directing calcium to the bones and away from soft tissues, working synergistically with vitamin D3, which aids in calcium absorption. No published trial has tested the D3 and K2 combination on its own for mood or perimenopausal depression. The closest study gave vitamin D and vitamin K2 alongside a third ingredient, purified cytoplasm of pollen, and reported improvement in the psychosocial domain of a menopause quality-of-life questionnaire; because it was retrospective, unblinded and gave three ingredients together, it cannot show what D3 and K2 contributed on their own[9]. Their synergistic roles in calcium handling are still worth understanding for anyone considering supplementation, but that is a bone and vascular rationale rather than a mood one. The focus on D3 for mood is based on its direct involvement in neurological processes, as suggested by the presence of vitamin D receptors in the brain [1].
References
- Vitamin D and Depression in Women: A Mini-review. Current neuropharmacology, 2020
- Is Serum Vitamin D Associated with Depression or Anxiety in Ante- and Postnatal Adult Women? A Systematic Review with Meta-Analysis. Nutrients, 2024
- A systematic review on the impact of nutrition and possible supplementation on the deficiency of vitamin complexes, iron, omega-3-fatty acids, and lycopene in relation to increased morbidity in women after menopause. Archives of gynecology and obstetrics, 2024
- The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials. Critical reviews in food science and nutrition, 2023
- Effects of Vitamin D(3) and Marine Omega-3 Fatty Acids Supplementation on Indicated and Selective Prevention of Depression in Older Adults: Results From the Clinical Center Sub-Cohort of the VITamin D and OmegA-3 TriaL (VITAL). The Journal of clinical psychiatry, 2023
- Effects of nutritional interventions on the severity of depressive and anxiety symptoms of women in the menopausal transition and menopause: a systematic review, meta-analysis, and meta-regression. Menopause (New York, N.Y.), 2022
- Annual high-dose vitamin D3 and mental well-being: randomised controlled trial. The British journal of psychiatry : the journal of mental science, 2011
- Clinician guidelines for the treatment of psychiatric disorders with nutraceuticals and phytoceuticals: The World Federation of Societies of Biological Psychiatry (WFSBP) and Canadian Network for Mood and Anxiety Treatments (CANMAT) Taskforce. The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry, 2022
- Beneficial Effects of Purified Cytoplasm of Pollen Associated with Vitamin D and Vitamin K2 on Menopausal Symptoms and Bone Health. Nutrients, 2026
These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Content is for informational purposes only and is not medical advice; consult a qualified healthcare provider before starting any supplement. As an Amazon Associate we earn from qualifying purchases.