At a glance
A 12-week trial found similar changes in hot flushes, sleep and mood with omega-3 and placebo. A varied diet can support health through midlife, while troublesome symptoms deserve their own care conversation. [1] [2] [3]
What changes during perimenopause?
Perimenopause is the transition leading up to menopause. A change in the timing or pattern of periods can be an early clue. People may also experience hot flushes, night sweats, changes in mood, vaginal dryness or aching joints. The combination and intensity vary from person to person, and even from month to month. [1]
In otherwise healthy people aged 45 or over, NICE generally uses symptoms and menstrual history to identify perimenopause. Hormonal contraception or other hormonal treatment can make the picture harder to interpret. If symptoms begin before 45, a GP can discuss whether further assessment is appropriate. [1]
What has omega-3 research found?
The MsFLASH trial compared omega-3 with a placebo for 12 weeks in perimenopausal and postmenopausal participants with frequent hot flushes or night sweats. Both groups reported fewer episodes by the end of the trial, with similar reductions. The groups also reported similar changes in how bothersome their symptoms were, in sleep and in mood. [2]
The comparison matters because symptoms can fluctuate over time. Feeling better after starting something can be a real experience while leaving the cause uncertain. Researchers use a placebo group to help separate the effect of the intervention from other influences. This trial gives a reason to be cautious about expecting omega-3 to relieve hot flushes or improve sleep during the menopause transition. [2]
What does eating well look like in midlife?
The NHS suggests a varied, balanced diet and regular movement, including activity that puts weight through the bones. For everyday meals, think about where you already get protein, fibre and calcium, then build on the options that suit your tastes and routines. Calcium-rich choices include yoghurt, milk and kale. Oily fish such as sardines and salmon provides long-chain omega-3, and some tinned fish with edible bones also provides calcium. [3] [4]
Bone health and symptom relief are separate questions. A meal can contribute useful nutrients even when there is little evidence that a particular nutrient relieves a specific symptom. That distinction can make it easier to set priorities when you are weighing dietary advice alongside other options. [1] [3]
Preparing for a conversation with your GP
A short record can help you explain what has changed. Note the dates and pattern of your periods, how often flushes interrupt sleep, and which symptoms are affecting work or daily activities. Bring a list of medicines and supplements and mention any contraception you use. Start with the symptom you most want help with. [1]
NICE recommends discussing the benefits and risks of hormone replacement therapy (HRT) for hot flushes and night sweats. Menopause-specific cognitive behavioural therapy is also an option in certain circumstances, including alongside HRT or when HRT is unsuitable or someone prefers to avoid it. Your health history and preferences help guide that discussion. [1]
Common questions
Does omega-3 balance hormones in perimenopause?
The 12-week MsFLASH study measured hot flushes and related symptoms. It provides no basis for expecting omega-3 to regulate reproductive hormones or ease those symptoms. [2]