Perimenopause is a transitional phase that can bring various changes, including shifts in mood. Many women experience mood swings, irritability, and feelings of unease during this time, which can significantly impact daily life and well-being.
Understanding potential nutritional strategies, such as the role of inositol, may offer valuable insights for women seeking ways to navigate these mood fluctuations. This article explores how inositol, including myo-inositol and D-chiro-inositol, might influence mood pathways during perimenopause.
Understanding Perimenopausal Mood Changes
The hormonal shifts characteristic of perimenopause are thought to play a role in influencing mood. Fluctuations in estrogen and progesterone can impact brain chemistry, potentially affecting neurotransmitter systems that regulate mood, such as serotonin and dopamine.
These changes can manifest as heightened emotional reactivity, increased stress sensitivity, and a general sense of emotional instability. Exploring supportive approaches that consider these underlying biological pathways can be a valuable part of managing perimenopausal experiences.
What is Inositol? Myo-Inositol and D-Chiro-Inositol
Inositol is a naturally occurring compound, often referred to as a pseudovitamin, that plays a role in various cellular processes. It exists in several forms, with myo-inositol and D-chiro-inositol being the most studied in human health. These forms are involved in cell signaling pathways and are precursors to secondary messengers in the body.
While inositol is present in many foods, supplemental forms are also available. Research has explored inositol’s involvement in several physiological systems, including those related to metabolic health and brain function.
Inositol’s Potential Influence on Serotonin Pathways
Serotonin is a neurotransmitter often associated with feelings of well-being and happiness. Imbalances in serotonin levels or its signaling pathways are linked to various mood disturbances. Inositol is thought to be involved in the signaling of several neurotransmitters, including serotonin.
Specifically, myo-inositol is a component of the phosphatidylinositol cycle, a system important for relaying signals from neurotransmitters like serotonin within cells. By influencing these intracellular signaling cascades, inositol may support the efficient functioning of serotonin pathways, which could, in turn, contribute to mood stability. Evidence suggests that inositol may have a role in supporting psychological symptoms in women with Polycystic Ovary Syndrome (PCOS) [1].
Exploring Inositol’s Connection to Dopamine Pathways
Dopamine is another crucial neurotransmitter involved in reward, motivation, and mood regulation. Disruptions in dopamine signaling can contribute to feelings of low motivation, fatigue, and anhedonia, which can be part of the perimenopausal experience. While the direct link between inositol and dopamine pathways is less extensively studied than its connection to serotonin, there are indirect mechanisms to consider.
Inositol’s general role in cell signaling and membrane integrity could indirectly support the overall health and function of neurons, including those that produce and respond to dopamine. Maintaining robust neuronal communication is essential for balanced mood and cognitive function during midlife transitions.

Research and Expert Perspectives on Inositol for Mood Support
The World Federation of Societies of Biological Psychiatry (WFSBP) and Canadian Network for Mood and Anxiety Treatments (CANMAT) Taskforce has reviewed evidence for nutraceuticals and phytoceuticals in the context of psychiatric disorders. Their guidelines acknowledge the potential of certain nutraceuticals in supporting mental health [2].
While direct, large-scale studies specifically on inositol for perimenopausal mood swings are still emerging, the existing research on its role in neurotransmitter signaling, particularly serotonin, provides a basis for its exploration in supporting mood balance. For example, a study on maternal mood and anxiety after combined myo-inositol, probiotics, and micronutrient supplementation from preconception showed findings related to mental health functioning [3]. Additionally, inositol has been studied in the context of psychological symptoms in women with PCOS [1], a condition that can also involve hormonal imbalances and mood disturbances.
References
- Inositol treatment for psychological symptoms in Polycystic Ovary Syndrome women. European review for medical and pharmacological sciences, 2021
- 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
- Maternal mood, anxiety and mental health functioning after combined myo-inositol, probiotics, micronutrient supplementation from preconception: Findings from the NiPPeR RCT. Psychiatry research, 2024
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.

