- Pharmacology of appetite suppression: implication for the treatment of obesity. Halford JC. Curr Drug Targets. 2001;2:353–370.
- Stress, cortisol, and other appetite-related hormones: Prospective prediction of 6-month changes in food cravings and weight. Obesity (Silver Spring). 2017;25(4):713-720. doi:10.1002/oby.21790
- Rada P, Avena NM, Hoebel BG. Daily bingeing on sugar repeatedly releases dopamine in the accumbens shell. Neuroscience. 2005;134(3):737-744. doi:10.1016/j.neuroscience.2005.04.043
- Camaschella, C. (2015). Iron-deficiency anemia. N Engl J Med, 2015(372), 1832–1843.
- Blanco-Rojo, R., Toxqui, L., López-Parra, A. M., Baeza-Richer, C., Pérez-Granados, A. M., Arroyo-Pardo, E., & Vaquero, M. P. (2014). Influence of diet, menstruation and genetic factors on iron status: A cross-sectional study in Spanish women of childbearing age. International Journal of Molecular Sciences, 15(3), 4077–4087.
Your meal sizes will vary from one meal to another and from day to day.
It’s not only crucial for you to grasp how to heed your body’s signals of hunger and satiety, but it’s also vital to comprehend why your serving sizes fluctuate with each meal, allowing you to utilize those small insights about yourself to feel more assured in how to optimally nourish your distinct body.
Numerous factors can affect how much you consume, and if you aren’t cognizant of these elements, you may find yourself eating amounts that don’t align with your body’s requirements.
Becoming more aware of why you feel the need for a larger or smaller serving will help you discover the appropriate level of nourishment you require.
Continue reading to learn what to be aware of as you select your food portion sizes to enhance your ability to use your hunger and satiety as a guide.
Reasons Your Food Portions May Change
Remember these factors as you assess your hunger and decide what your food portions ought to be.
1. Previous Consumption (or Lack Thereof)
A common factor that likely affects your food portions is what you’ve eaten previously, or not eaten, and how satisfying the food you consumed was for you.
For instance, if you’ve consciously or unconsciously eaten less throughout the day, your body might experience intense hunger that could lead to larger portions. These larger servings can frequently result in overeating due to extreme hunger.
Moreover, if we undereat for a prolonged period and then suddenly consume a significant amount of food due to overwhelming hunger, it can trigger blood sugar spikes. This can leave us feeling less fulfilled and satiated overall, continuing the cycle.
Conversely, suppose you’ve had a hearty dinner and now wish to indulge in dessert. That dessert portion will often tend to be smaller because of your sufficient intake during dinner. Having a very light dinner before dessert can lead to a greater serving of dessert, as your hunger cues might remain unsatisfied.
It’s also essential to reflect on how nutritious the foods you’ve chosen to consume are and how you’ve balanced those during your meals. If you’ve enjoyed a well-rounded Foundational Five meal, you’ll likely feel more satisfied between meals; however, an imbalanced meal may leave you hungry soon after.
2. Levels of Activity
Your activity levels can also influence the portions of food you require.
On days where you are more active, you’ll probably notice that you need a larger serving of food to support your activity level. To meet this need, focus on incorporating carbohydrates and healthy fats that provide your body with the sustained energy required, along with some protein to aid in muscle tissue repair.
When you observe yourself being more active than normal, remain mindful of this to ensure that you’re adapting your portions accordingly.
Conversely, if you’re generally quite active and on a rest day, your body won’t require as much fuel, so you should note how your hunger evolves on your less active days.
3. Environmental Stimuli
One typical factor that can inadvertently affect your portion sizes is environmental stimuli. These are elements in your environment that may prompt you to eat certain foods or quantities.
Some environmental cues can be supportive, such as having more nutritious food choices at eye level in the fridge instead of buried in the produce drawers below. This can encourage you to choose larger servings of vegetables and greens as they remain top of mind.
However, some environmental cues may undermine the eating habits you wish to cultivate. For instance, a member of our Mindful Nutrition Method™ program discovered that she often snacked on chips or cookies in the afternoon. Through exploration, she found this was due to routinely passing by the office kitchen while going to meetings or refilling her tea, prompting her to grab a snack simply because it was readily available.
Recognizing your eating patterns to identify when you might be swayed by your environment can assist in pinpointing if and when it affects your portion sizes.
4. Levels of Stress
Stress can influence your portion sizes in two distinct ways.
- Reduced portions
When stress first manifests, your appetite is likely to decrease since your sympathetic nervous system (SNS) enters “fight or flight” mode to address the stressful situation. Your brain instructs your adrenal glands to release adrenaline, which raises your heart rate, directing blood to your muscles and heart so you can act, momentarily suppressing your hunger (1). Once the stressful situation subsides, your SNS returns to its baseline.
If you’re unaware that stress suppresses your hunger, you might notice a tendency to undereat. While we rely on our hunger indicators to direct our food choices, it’s essential to recognize when those signals might not be functioning correctly (i.e., due to stress) and ensure you’re still nourishing yourself appropriately.
- Increased portions
The second way stress can affect your servings is through chronic stress. If stress remains unmanaged or unresolved, the SNS will continue to be activated in response.
In this scenario, your body produces cortisol, often called the stress hormone. Unlike adrenaline, which can halt your hunger, cortisol can actually stimulate your appetite (2). If your stress response stays “on,” your cortisol levels might remain high.
If you’re contending with chronic stress, you’re not only likely to experience physical hunger, but you may also encounter increased cravings for carbohydrates or sugary foods.
Sugar can trigger the release of dopamine — the pleasure chemical, activating the brain’s reward centers (3).
This stress-related eating can lead you towards larger servings of those foods.
5. Eating While Distracted or in a Hurry
Eating while distracted or in a hurry is just that — consuming food while your focus is elsewhere or rushing through a meal. This usually manifests as dining in front of the television, at your desk, while scrolling through social media, or any other activity that diverts your attention from enjoying your meal.
When you’re distracted or hurried, it’s significantly more difficult to utilize your hunger and fullness signals as a gauge for portion sizes. This may lead to either consuming more or less than your body requires because you’re not attuned to your body’s messages.
6. Sleep Deprivation May Affect Your Food Portions
Studies have indicated that inadequate sleep quality can lead to heightened cravings for processed or sugary foods, excessive eating throughout the day, and lower consumption of fruits and vegetables.
Consider focusing on meals rich in protein and fats when you’re feeling fatigued, as they can provide you with more enduring energy throughout the day!
7. Your Menstrual Cycle
<pNearly 30 percent of premenopausal women experience iron deficiency (4), and if you follow a vegetarian or vegan diet or have heavy menstrual flows, your risk for iron deficiency increases. Moreover, menstruation itself reduces iron levels in the body (5).
Consequently, you might feel more fatigued during your menstrual period, signaling your body’s need for energy. Carbohydrates serve as the body’s fast-acting energy source, so you might find yourself craving carbohydrate-heavy foods or feeling the need for a larger portion to replenish that energy.
Ensure you consume sufficient iron-rich foods, especially throughout your menstrual cycle, to meet your body’s energy and nutritional demands.
8. Your Hydration Level
Water plays a crucial role in every bodily function, including metabolism. By staying properly hydrated each day, you’re aiding digestion and promoting an efficient metabolism, among other benefits (1)(2).
If you’re dehydrated, you may mistake thirst for hunger. Maintaining hydration will help keep your hunger cues accurate.
When you feel hungry, drink a glass of water, wait 10-15 minutes, and reassess your hunger feelings. If you’re still hungry, you may be genuinely hungry, but if your hunger decreases, consider drinking a bit more water to see if you’re simply thirsty.
How to Cultivate Your Ability to Identify the Right Portions
Determining the right portions requires patience and practice. It calls for tuning into your body to understand what physical hunger and satiety feels like for you, while also acquiring the knowledge to effectively utilize that understanding. This is exactly what we assist our members with in the Mindful Nutrition Method™ program.
You can register here for our free workshop where we provide an exercise to help you better attune to your unique hunger and fullness signals and guide you through our Mindful Nutrition Method™.
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