Food, Fitness, and Cycle: Have you ever noticed that your mood, energy levels, and appetite seem to fluctuate throughout the month? You’re not imagining it—and you’re certainly not alone. These shifts are a normal part of the menstrual cycle, driven by natural hormonal fluctuations that affect how your body feels and moves from day to day. One week, you might crave chocolate; Others, you need extra rest. Both are your body’s way of asking for support.
Because no two cycles (or bodies) are exactly alike, researchers have begun to examine in more detail how different phases of the menstrual cycle—and the hormonal changes that accompany them—can affect nutritional and exercise needs. While research in this area is still developing, the initial findings offer some interesting insights.
Read on to find out what a “sync cycle” is and how setting your own cycle can help you better understand and support your body.
What Is Cycle Syncing?
Cycle synchronisation first came to attention in 2014, when functional nutrition practitioners introduced the idea of aligning nutrition, movement, and workload with perceived changes in energy during the menstrual cycle. At the core, there’s a great foundation: encouraging women to be more aware of their cycles and permitting them to dress the way they feel.
However, like many things with good intentions in the first place, social media has spread false hope and misinformation about this trend, which can do more harm than good. That’s why we’re here to set the record straight. There are benefits to synchronising cycles, but not all of them can apply to every woman. It’s more about awareness and personalisation of the cycle than about following rigid rules.
Benefits of Syncing Diet and Exercise to Your Menstrual Cycle
Research is very scarce on the clinical benefits of synchronising diet and exercise with the menstrual cycle. However, the fact that conclusive data isn’t available doesn’t mean that gaining greater awareness of your cycle—and how you feel—isn’t powerful. Keep this in mind when considering whether to incorporate cycle synchronisation into your own life.
Some health experts suggest that balancing nutrition and physical activity with your cycle can provide benefits such as:
- Better mood
- A reduction in the intensity of common menstrual symptoms, such as cramping and bloating
- Better utilisation of high-energy phases
- More clarity in understanding when to prioritise rest and when to push your body harder
- More conscious nutrition choices during periods of increased appetite
Understanding the Phases of Your Cycle
The menstrual cycle is complex, but that doesn’t mean it has to be confusing. Melissa Jaeger (RD, LD), Director of Nutrition at MyFitnessPal, notes: “Understanding what’s happening in your body can make changes in energy and cravings more manageable.” For simplicity, we will divide the cycle into two phases: the follicular and luteal phases.
By understanding the hormonal changes that occur during each phase, you will gain greater insight into why your energy and workout appetite may fluctuate throughout the month.
The Follicular Phase
The period from the day your period begins until ovulation—when the egg is released from the ovary—is called the follicular phase.
What to Eat During the Follicular Phase
During menstruation:
Consider eating energy-dense foods high in iron to help replenish blood loss during menstruation; for example, dark leafy greens—paired with vitamin C-rich foods to aid absorption—and lean animal proteins.
Try using omega-3 fats—like those found in salmon, nuts, and seeds—to help reduce inflammation and cramps.
Late Follicular Phase:
Consider eating energy-dense foods to support increased energy levels (and potentially increased workout intensity). Whole grains and lean proteins can help supply glucose and support muscle repair.
Consider focusing on high-fibre foods—such as cruciferous vegetables and whole grains—to help balance high estrogen levels.
Try to reduce your added sugar intake.
Key Point To Remember
Research suggests that energy intake may be reduced during this phase; however, it is still important to consume enough nutritious foods to maintain your activity level. Logging your food in MyFitnessPal can help you identify trends and understand how well you are meeting your daily nutritional needs.
The Luteal Phase
When ovulation is over, the luteal phase begins and continues until the next menses begin.
What to Eat During the Luteal Phase
Increased appetite is normal during this time; in fact, studies show that some women tend to consume more calories during the luteal phase due to starvation. Keep these nutritional aspects in mind when planning your meals:
Apply the “Rule of 3”: protein, fat, and fibre. Making sure your main meals and snacks include at least one source of each nutrient is essential to staying satisfied and full.
Complex carbohydrates help promote satiety and control appetite. Choose those made from natural sugar sources, such as sweet potatoes, bananas, and oats.
Bottom Line
Knowledge is indeed power, and synchronising with your menstrual cycle can be a useful tool for better understanding your body throughout the month. Remember: no handbook fits all. Every cycle is different, and these needs may vary from one month to the next.
Even a short experiment with cycle awareness can help you identify patterns in your energy levels, cravings, and exercise routines—valuable information you can use to support your long-term goals.
Tracking your cycle on your calendar or through an app—combined with logging your food in MyFitnessPal—can make it easier to spot these patterns.
This way, you can start to notice trends in your energy, cravings, and workouts, allowing you to make smarter, more beneficial decisions that move you closer to your long-term goals.