One of the most common concerns of women in perimenopause/menopause is managing their weight. On average, women between 45-55 years old gain approximately half a kilogram per year. While aging and lifestyle contribute to weight gain in both men and women, hormonal and metabolic shifts specific to menopause make shedding those extra kilos more challenging.

Metabolic Changes During Perimenopause:

Metabolic changes refer to alterations in the body’s metabolic processes, which involve the conversion of food into energy to support various physiological functions. These changes can manifest in shifts in the rate at which the body burns calories (metabolic rate), the way it processes nutrients, and the distribution of fat and muscle.

Metabolic changes during perimenopause significantly impact a woman’s physiology and contribute to weight management challenges.

1. Basal Metabolic Rate (BMR) Decline:
   • During perimenopause, women often experience a decrease in BMR. A lower BMR means the body burns fewer calories at rest, making weight management more challenging. This decline is associated with changes in body composition, including a reduction in lean muscle mass and an increase in body fat.

2. Changes in Fat Distribution:
   • Perimenopause often brings about alterations in fat distribution. There is a tendency for fat to accumulate around the abdominal area, leading to an increase in visceral fat. This type of fat is metabolically active and is associated with a higher risk of metabolic disorders such as cardiovascular disease and diabetes.

3. Insulin Resistance:
4. Insulin plays a crucial role in regulating blood sugar (glucose) levels by facilitating the uptake of glucose into cells. In insulin resistance, cells require higher amounts of insulin to respond adequately, leading to elevated blood sugar levels. Elevated insulin levels can promote fat storage and hinder weight loss efforts.
5. During perimenopause fluctuations in reproductive hormones can influence insulin sensitivity, potentially leading to insulin resistance.

Hormonal Changes in Perimenopause:

Menopause is marked by significant reproductive hormone changes, primarily involving a decline in oestrogen and progesterone levels. As women enter perimenopause, these changes can lead to an increase in body fat, a decrease in muscle mass and a slower metabolism.

Oestrogen, a principal hormone in women’s health, intricately regulates various aspects of weight during menopause.

• Leptin regulation: Leptin is a hormone that signals satiety to the brain. The decline in oestrogen levels during menopause results in decreased leptin production, fostering an increase in appetite and overall food intake.
• Fat distribution: Oestrogen supports/ promotes a “pear-shaped” pattern before menopause. However, with the hormonal changes in menopause, there is a notable shift towards an “apple-shaped” distribution, emphasizing abdominal fat accumulation.
• Insulin Sensitivity: Oestrogen plays a role in maintaining insulin sensitivity. As oestrogen declines, it can lead to disrupted glucose metabolism and insulin resistance. This hormonal imbalance may contribute to weight gain, especially around the abdominal area. Insulin resistance hinders efficient glucose uptake by cells, causing elevated blood sugar levels. Consequently, the body may store more fat, leading to increased adiposity.

Progesterone, the sister hormone to oestrogen, plays a crucial role in maintaining metabolic balance during menopause.

• Insulin Sensitivity: As progesterone levels decline, there is a notable impact on insulin sensitivity, with reduced levels contributing to an increased risk of insulin resistance. This decline in insulin sensitivity can lead to challenges in managing blood sugar levels effectively.
• Muscle Mass: Progesterone exhibits an anabolic (growth) effect on muscle tissue, aiding in muscle mass maintenance. The reduction in progesterone levels during menopause can result in decreased muscle mass, ultimately slowing down metabolism.

Testosterone: Although present in smaller amounts in females, testosterone is an essential anabolic hormone that aids in building and preserving muscle mass. The decline in testosterone contributes to muscle mass reduction and a slower metabolism, making weight loss more challenging.

Other Hormones that Affect Menopause Weight Loss:

In addition to reproductive hormones, several non-reproductive hormones play pivotal roles in weight gain during menopause.

• Insulin: Produced by the pancreas, insulin regulates blood sugar levels.
• Cortisol: the stress hormone produced by the adrenal glands, can elevate during chronic stress, contributing to increased insulin resistance and fat storage, particularly in the abdominal region.  
• Leptin: produced by fat cells, controls hunger and satiety. Chronic elevation of leptin levels in overweight individuals can lead to leptin resistance, impairing the ability to feel full and potentially contributing to overeating.
• Ghrelin: produced by the stomach, stimulates appetite, and promotes fat storage; its dysregulation may lead to overeating and weight gain.
• Thyroid hormones: responsible for regulating metabolic rate, can influence weight as imbalances may result in a slowed metabolism and weight gain.
• Catecholamines: including adrenaline and noradrenaline, respond to stress and exercise, impacting energy expenditure and fat burning.

Understanding the multifaceted role of these non-reproductive hormones is crucial for developing comprehensive strategies to manage weight effectively during menopause.

I Am Eating Less and Exercising More, Why Aren’t I Losing Weight?

The notion of “Eat Less, Exercise More” is a simplistic approach to weight management and oversimplifies the complex interplay of factors influencing metabolism and body composition. While caloric balance is a fundamental concept, focusing solely on quantity neglects the quality of food and the impact on metabolic rate.

Metabolism, the body’s energy expenditure, is influenced by various factors, including genetics, age, hormonal fluctuations, and muscle mass. Drastically cutting calories may temporarily lead to weight loss, but the body can adapt by slowing metabolism to conserve energy. This adaptive response often results in weight plateaus and frustration.

Furthermore, the type of weight lost matters. Simply reducing caloric intake can lead to muscle loss along with fat loss. Since muscle tissue is metabolically active, losing muscle can further reduce the resting metabolic rate. This cycle makes it harder to sustain weight loss and may result in the infamous “yo-yo” dieting phenomenon.

A more holistic approach involves considering nutrient-dense & protein-rich foods, preserving muscle mass through resistance training, and understanding the individualised nature of metabolism. A balanced lifestyle that includes a mix of cardiovascular exercise, strength training and a nutritious diet is crucial for sustainable and healthy weight management.

Practical Solutions:

1. Balanced Diet: Prioritise whole foods, quality proteins, fruits, vegetables, whole grains, and healthy fats while avoiding processed and sugary foods.
2. Regular Exercise: Include aerobic exercise, flexibility, and strength training in your routine for overall health and metabolism support.
3. Manage Stress: Incorporate stress-reducing techniques like meditation, yoga, and deep breathing to mitigate the impact of stress hormones on weight.
4. Adequate Sleep: Aim for 7-8 hours of quality sleep each night to support overall well-being, including weight management.
5. Stay Hydrated: Drinking enough water supports metabolism and helps control cravings.
6. Limit Alcohol and Caffeine: These substances can disrupt sleep and metabolism, intensifying perimenopause symptoms.
7. Monitor Portion Sizes: Practice portion control to avoid overeating or undereating.
8. Stay Consistent: Maintain a routine of healthy eating, regular exercise, and sufficient sleep for consistent weight management.

Conclusion: Understanding the hormonal and metabolic changes during menopause is essential for effective weight management. By adopting a holistic approach that addresses diet, exercise, stress, sleep and hormonal balance, women can navigate this phase with better success in achieving and maintaining a healthy weight.

Weight management for active women pre- and post- menopause is a complex journey, influenced by hormonal changes, metabolic efficiency, and gut health. Understanding the intricate connections between these factors can empower women to make informed decisions about their nutrition, exercise, and lifestyle choices.

When seeking expert advice on weight during Meno, a friend who is a naturopath put a call out nationally and Melissa’s name kept coming up. Melissa has a wealth of knowledge in the field of nutrition, and she is dedicated to helping women navigate the unique nutritional challenges that come with this stage of life. Therefore, I was absolutely thrilled to have her support and collaboration to bring you clinical nutritional information that can assist you in weight management and symptom support in peri/menopause. You can see the professionals I have engaged with on my journey at the Mimi Moon Meno reference page here.