Trend Talk: Our Nutritionist Unpacks Cycle Syncing

In the world of wellness trends, “cycle syncing” has gained significant momentum, particularly among women seeking to harmonize their lifestyles with their menstrual cycles. 

This approach advocates aligning diet, exercise, and daily routines with the phases of the menstrual cycle to optimize hormonal health, energy levels, and overall well-being. 

But is cycle syncing backed by science, or is it just another fad in the ever-expanding wellness industry?

To help sort fact from fiction, Flavor & Fettle’s in-house nutritionist and dietician, Karen Zinka, is here to help. With her expertise and practical perspective, she’ll explore the claims, explain the science, and offer tips on how (or if) to incorporate this trend into your lifestyle. Read her thoughts on the trend below.

What is Cycle Syncing?

Cycle syncing is a method popularized by functional nutritionist Alisa Vitti, author of WomanCode and founder of Flo Living. The concept revolves around the idea that women’s hormonal fluctuations throughout their menstrual cycle influence their physical, mental, and emotional states. By tailoring activities, nutrition, and fitness regimens to each phase of the cycle, proponents claim women can work with their hormones rather than against them.

The menstrual cycle is typically divided into four phases, each marked by unique hormonal shifts:

Menstrual Phase (Days 1–5)
Hormone levels, including estrogen and progesterone, are at their lowest. This is a time for rest and reflection.

Follicular Phase (Days 6–14)
Estrogen begins to rise, stimulating follicle growth in the ovaries and increasing energy and creativity.

Ovulatory Phase (Days 15–17)
Estrogen peaks, and luteinizing hormone surges to trigger ovulation. Energy and sociability are at their highest.

Luteal Phase (Days 18–28)
Progesterone rises to prepare the body for potential pregnancy. Energy levels dip, and cravings or mood swings may occur as PMS symptoms arise.

Cycle syncing encourages adapting lifestyle habits to these phases to maximize productivity, manage symptoms, and support hormonal health.

Why is Cycle Syncing Gaining Popularity?

The growing conversation around cycle syncing is fueled by a broader shift toward personalized wellness and hormone awareness. Social media platforms like TikTok and Instagram have played a key role in amplifying the trend, with influencers sharing their experiences and tips. Hashtags like #CycleSyncing and #HormoneHealth have garnered millions of views, highlighting everything from tailored workout routines to recipes designed for specific phases.

Many women are drawn to cycle syncing as a natural alternative to managing common menstrual issues like PMS, fatigue, and irregular cycles. Unlike medication-based approaches, this method emphasizes listening to your body and making incremental lifestyle changes.

Trend or Truth?

While the concept of aligning habits with the menstrual cycle has intuitive appeal, its scientific foundation is still evolving. Here’s what we know:

The Science Behind Cycle Syncing

Hormonal Fluctuations Are Real
There’s no denying that estrogen, progesterone, and other hormones affect energy levels, mood, and metabolism. For example, research shows that estrogen boosts serotonin (a mood-regulating neurotransmitter), which may explain why women feel more upbeat during the follicular phase.

Exercise and the Menstrual Cycle
A 2020 study published in Sports Medicine found that tailoring exercise intensity to the phases of the menstrual cycle could improve performance and recovery. For instance, high-intensity workouts may feel easier during the follicular phase, while lighter activities like yoga are better suited for the luteal phase.

Nutrition and Hormonal Health
Studies suggest that consuming certain nutrients during specific phases may support hormonal balance. For example, magnesium and vitamin B6 may help reduce PMS symptoms during the luteal phase, while iron-rich foods can replenish stores during menstruation.
Despite these insights, there is limited direct evidence supporting the effectiveness of cycle syncing as a comprehensive lifestyle system.

Where the Research Falls Short

Despite these insights, there is limited direct evidence supporting the effectiveness of cycle syncing as a comprehensive lifestyle system. Most studies focus on isolated aspects like exercise or diet rather than the holistic approach promoted by cycle syncing advocates. Additionally, individual variations in cycle length and hormonal responses mean that not everyone will experience the same results.

Should You Try Cycle Syncing?

Cycle syncing can be a low-risk, potentially beneficial approach to better understanding and working with your body. However, it’s not a one size solution for all. Here’s what to consider:

Benefits

  • Encourages body awareness and self-care.
  • May help manage menstrual symptoms like fatigue, mood swings, and cravings.
  • Promotes a balanced approach to fitness and nutrition.

Challenges

  • Requires consistent tracking of your cycle, which may not be feasible for everyone.
  • Results may vary, especially for women with irregular cycles or hormonal imbalances like PCOS.

Who Should Avoid It?

Women with unpredictable cycles, certain medical conditions, or those experiencing perimenopause may find it difficult to implement cycle syncing effectively. In such cases, consulting a healthcare provider is recommended.

Cycle syncing is more than just a trendy buzzword, it is a reflection of the growing interest in personalized wellness and hormonal health. While it is not the end-all-be-all of whole health, its emphasis on understanding and adapting to hormonal fluctuations has merit. For many women, it serves as a gateway to better body awareness and a more intentional approach to self-care.

That said, more research is needed to validate cycle syncing as a scientifically robust method. If you’re curious about trying it, start with small changes like adjusting your workouts or incorporating hormone-friendly foods. As with any wellness trend, listen to your body and seek professional advice when necessary.