A guide to intermittent fasting for women over 50

Friday 24 February 2023
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Intermittent fasting (IF) is an increasingly popular eating pattern that involves cycling between periods of fasting and eating. The focus of IF is on when you eat, rather than what you eat. Various methods of intermittent fasting have emerged, each with its own unique approach to time-restricted eating.

The underlying concept of IF is based on the idea that our bodies have evolved to handle periods of food scarcity and abundance. As such, fasting may have numerous health benefits by allowing our bodies to repair, rejuvenate, and restore balance.

Research on intermittent fasting has gained momentum in recent years, unveiling numerous health benefits associated with this dietary approach. According to a study published in the New England Journal of Medicine, intermittent fasting can lead to improved metabolism, better weight management, and a reduced risk of chronic diseases (1). Another study in Cell Metabolism found that IF could improve insulin sensitivity, blood pressure, and oxidative stress markers (2).

The popularity of intermittent fasting stems from its flexibility and ease of implementation. Many people find it more sustainable compared to traditional diets, as it doesn't require counting calories or eliminating specific food groups. Additionally, the variety of IF methods available allows individuals to choose an approach that best suits their lifestyle and personal preferences.

Benefits of Intermittent Fasting for Over 50s

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Numerous studies have shown that intermittent fasting offers a range of health benefits, especially for women over 50. Some of the most significant advantages include:

  • Weight loss: As we age, our metabolism slows down, making it harder to shed extra pounds. Intermittent fasting helps by limiting your eating window, which naturally reduces calorie intake and encourages weight loss.

  • Improved insulin sensitivity: IF has been proven to increase insulin sensitivity, which can help manage or even prevent type 2 diabetes—a condition that often affects women over 50.

  • Enhanced brain health: Intermittent fasting stimulates the production of brain-derived neurotrophic factor (BDNF), a protein that supports cognitive function and may protect against neurodegenerative diseases.

  • Longevity: Caloric restriction, which can occur naturally through intermittent fasting, has been associated with increased lifespan and reduced age-related diseases.

  • Autophagy: Autophagy is a cellular process that breaks down and recycles damaged cells, promoting optimal health. IF encourages autophagy, helping your body to maintain its youthful vigour.

Getting Started with Intermittent Fasting

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Before diving into the world of intermittent fasting, it's essential to choose a method that aligns with your lifestyle and preferences. Here are three popular options to consider:

  • The 16/8 method: This method is perfect for beginners, as it involves fasting for 16 hours and eating within an 8-hour window. Start by skipping breakfast and eating your first meal around noon, followed by dinner before 8 pm.

  • The 5:2 method: If you prefer a more flexible approach, the 5:2 method might be the right fit. On two non-consecutive days of the week, consume only 500-600 calories, while eating normally on the other five days.

  • Alternate-day fasting: This method requires fasting every other day, consuming no or minimal calories (up to 25% of your daily intake). On non-fasting days, you can eat normally. This approach is more challenging and might not be suitable for beginners.

Tips for Success

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To make the most of your intermittent fasting journey, keep these helpful tips in mind:

  • Stay hydrated: Drinking plenty of water during fasting periods can help curb hunger pangs and maintain energy levels. Herbal teas and black coffee (without added sugar or milk) are also acceptable beverages during fasting hours.

  • Focus on nutrient-dense foods: During your eating windows, prioritize consuming nutrient-dense, whole foods that provide essential vitamins, minerals, and fiber. This will ensure you're meeting your nutritional needs and help you feel more satisfied.

  • Listen to your body: It's crucial to pay attention to your body's signals while adapting to intermittent fasting. If you experience dizziness, fatigue, or other concerning symptoms, consider adjusting your fasting protocol or consult a healthcare professional.

  • Gradual adjustment: If you're new to intermittent fasting, ease into the practice by gradually extending your fasting periods. This will help your body adjust and minimize any potential side effects.

  • Combine with exercise: Pairing intermittent fasting with regular physical activity can enhance weight loss and overall health benefits. However, it's essential to choose the right type of exercise and timing to avoid excessive fatigue or hunger.

Common Concerns and Precautions

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While intermittent fasting is generally considered safe for most individuals, it's essential to be aware of some common concerns and precautions:

  • Hormonal changes: Women over 50 may experience hormonal fluctuations, particularly during menopause. Intermittent fasting can influence hormonal balance, so it's crucial to monitor your body's response and consult with a healthcare professional if you experience adverse effects.

  • Nutrient deficiency: Ensuring adequate nutrient intake during eating windows is vital for maintaining good health. Focus on consuming a balanced diet rich in essential nutrients, and consider working with a registered dietitian to tailor your nutrition plan.

  • Medical conditions: Women with pre-existing medical conditions, such as diabetes or low blood pressure, should consult their healthcare provider before starting intermittent fasting. This practice may not be suitable for everyone, and professional guidance is essential to avoid potential complications.

  • Eating disorders: Intermittent fasting may not be appropriate for individuals with a history of eating disorders, as it may trigger unhealthy eating patterns. Consult with a mental health professional if you have concerns about your relationship with food.

  • Medications: If you're taking medications that require food intake or have specific timing, intermittent fasting may not be suitable for you. Consult with your healthcare provider to discuss potential adjustments or alternative fasting methods.


Intermittent fasting presents an innovative approach to health and wellness for women over 50. By breaking away from the conventional dietary norms and focusing on the timing of meals rather than restricting specific food groups, intermittent fasting allows for a more sustainable and adaptable lifestyle change.

This eating pattern is backed by scientific research, which highlights the multiple health benefits it offers, such as weight loss, increased insulin sensitivity, enhanced brain health, and promotion of longevity.

Embarking on the intermittent fasting journey requires understanding the various methods, selecting the one that best aligns with your lifestyle, and being mindful of essential tips for success. As you experiment with different fasting protocols, it's crucial to listen to your body and make adjustments as needed.

Combining intermittent fasting with other healthy habits, such as regular exercise, adequate hydration, and a nutrient-dense diet, can further amplify the positive effects on your overall well-being.

Moreover, it's essential to be aware of the potential concerns and precautions associated with intermittent fasting, particularly for women over 50 who may be experiencing hormonal changes or have pre-existing medical conditions. Consulting with healthcare professionals and seeking guidance from registered nutritionists (such as a Simba health coach!) can provide invaluable support in tailoring the fasting protocol to your individual needs and ensuring a safe and effective transition.


(1) de Cabo, R., & Mattson, M. P. (2019). Effects of Intermittent Fasting on Health, Aging, and Disease. New England Journal of Medicine, 381(26), 2541-2551.

(2) Longo, V. D., & Mattson, M. P. (2014). Fasting: molecular mechanisms and clinical applications. Cell Metabolism, 19(2), 181-192.