Intermittent fasting for women: The truth about the trend (and why it's not your only option)
Despite the many health claims, intermittent fasting isn’t for everyone.
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Key takeaways
- Intermittent fasting may support weight loss and health, but results vary, and research on long-term safety is still limited.
- Women may face unique risks as fasting can affect hormones, menstrual cycles, fertility, and overall well-being.
- It’s not the only option. Sustainable weight loss is personal, and holistic approaches may be more effective in the long run.
Heard of intermittent fasting and wondering whether it’s a viable option for losing weight?
You’re absolutely right to be curious. Intermittent fasting has received a lot of attention in recent years for its supposed health benefits, from reduced risk of certain diseases to encouraging fat burning.
Despite the many health claims, intermittent fasting isn’t for everyone. Here’s what you need to know to figure out if it’s the right weight loss solution for you.
What is intermittent fasting?
Intermittent fasting is an eating pattern where you alternate between periods of eating normally and periods of eating very little or nothing at all.
There’s no single way to approach intermittent fasting, and fasts can last anywhere from a few hours to an entire day. Some people choose to have only two meals each day, while others will only eat within a particular timeframe – say, an 8-hour window from 9am to 5pm. Others still might have set days every week when they don’t eat.
Popular intermittent fasting methods
Given intermittent fasting’s surge in popularity, several structured approaches have emerged. The most popular methods include:
- The 5:2 diet: Involves eating as normal five days a week, then limiting yourself to 500-600 calories for two days (but not two days in a row)
- Time-restricted fasting: Requires you to eat within a particular timeframe each day and fast for the remaining hours. There are different intervals you can choose, but a common one is the 16/8 method, which involves eating normally within an 8-hour window and fasting for 16 hours
- Eat Stop Eat: Consists of one or two 24-hour fasts each week
- Alternate-day fasting: Switch between non-fasting days and days of very low or no calories
- The Warrior Diet: Small snacks, usually fresh fruit and veg, during the day and a large meal at night
- One meal a day: Fast for 23 hours and eat a big meal within a 1-hour window each day
How intermittent fasting impacts the body
The point of intermittent fasting is to help your body burn fat. When you eat normally – that is, three meals a day and maybe snacks – the calories from your food are your body’s primary energy source. Your body then turns to its own sugar stores (glycogen) as an energy source. But when you’ve gone an extended period without food, these sugar stores get used up, and your body turns to fat instead.
Research is ongoing into how intermittent fasting affects hormones, metabolism and cellular processes. Some studies suggest changes in insulin sensitivity, gut health and energy levels, but findings are not consistent, and more human research is needed.
Benefits of intermittent fasting
Some of the claimed benefits of fasting include:
- Support short-term weight management by reducing overall calorie intake
- Influence markers linked to inflammation and blood sugar regulation
- Affect energy, concentration and appetite in some people
However, not all studies agree, and the long-term health effects are still unclear.
What the science says (and what’s still unclear)
Evidence shows intermittent fasting can support weight loss in some people, but it does not appear more effective than other structured eating approaches [1].
Many studies have been small, short-term, or conducted in animals, so more high-quality human research is needed to understand the benefits and risks.
Some studies suggest possible drawbacks, including links to heart health, highlighting that fasting may not be suitable for everyone.
Why intermittent fasting is different for men and women
Another thing to note is that intermittent fasting can have different effects on men and women, and it’s all to do with hormones.
Many experts suggest that intermittent fasting can be risky for women because it affects sex hormones involved in the menstrual cycle [2]. Throughout your cycle, these hormones fluctuate, leaving your body sensitive to things like stress and calorie intake.
When your body thinks you’re in a state of starvation, it reacts by suppressing the production of certain hormones, potentially leading to menstrual cycle changes, low libido, sleep problems, hair loss, headaches and even infertility.
For this reason, intermittent fasting isn’t recommended if you’re trying to conceive, pregnant or breastfeeding. Health experts also suggest doing lower-intensity fasts like the 5:2 diet to minimise the potentially negative effects.
Is it just another fad?
Intermittent fasting has attracted a lot of attention in recent years. From documentaries and celeb endorsements to viral posts all over your social media feeds, it suddenly feels as if intermittent fasting and all its promises are everywhere. It’s become popular because it’s perceived as not only a weight loss tool but a game-changer for your overall health.
However, diet trends come and go, and an intermittent fasting diet is possibly no different. The last several decades have seen all kinds of diets crop up, including the Atkins diet, paleo, keto, zone diet, the cabbage soup diet, the lemonade diet, and the list goes on. Many of these have fallen out of favour or retreated from the spotlight, be it due to their genuine health risks or simply because something else has come along and taken centre stage.
That’s not to say that intermittent fasting will fade, too – but it is important to remember that diet trends are changing all the time, and even though the bandwagon is tempting, it’s not necessarily worth jumping on.
Potential risks
For many people, intermittent fasting is quite safe. But if you’re new to it, you might be better off starting with a gentler option, such as time-restricted eating or the 5:2 diet
Intermittent fasting is also generally not recommended for children and teenagers, people with diabetes, or people with certain medical conditions.
Other possible risks to be aware of include:
- Fatigue and reduced energy
- Dizziness
- Headache
- Constipation and other digestive issues
- Nutritional deficiencies
- Low blood sugar
- Mood swings or poorer mental health
- Sleep problems
- Potential for overeating during eating periods
If you notice any of these warning signs, it’s an indication that intermittent fasting isn’t working for your body.
Always chat to your GP before undertaking a new eating plan, especially if you’ve got one of the risk factors mentioned above.
Nutrition should be personal
One of the most crucial things to remember is that nutrition and dieting aren’t one-size-fits-all. What works for one person may not work for another, and a single diet can have vastly different results. Your body is unique and influenced by a range of factors, like hormones, metabolism, genes and lifestyle, meaning generic diets may not meet your needs.
Tuning into how your body responds to different foods and eating patterns, and learning to recognise your own hunger, energy and mood cues, are key to finding an approach that truly works for you. This may be some version of intermittent fasting, and it may not – it’s about recognising that your body is highly individual.
Juniper supports a holistic approach to weight loss
Instead of looking to trends, Juniper endorses a more holistic and sustainable approach to weight loss. If intermittent fasting doesn’t suit your needs, our programme may be a better fit.
The Juniper Program starts from $349/ month for our Juniper Essentials Program and $399/ month for our Juniper Program.
The Juniper Essentials Program includes clinically proven medical treatment, unlimited follow-up consultations with your Juniper practitioner, health tracking, and access to our supportive and like-minded Juniper community.
The Juniper Program includes clinically proven medical treatment, unlimited follow-up consultations with your Juniper practitioner, health coaching, 1:1 health tracking, access to our supportive and like-minded Juniper community, a welcome kit, and more. The Juniper Program is just $2/ day more than our Essentials Program.
Juniper is an investment in your health. Unlike other weight loss methods, Juniper’s is a holistic program that provides members with access to personalised dietitian and nutritionist support, health coaching, medical support from GPs, nurses, and pharmacists, exclusive app content, digital scales, precision weight tracking, and treatments delivered to your door.
Our Juniper Program pricing reflects the additional benefits our patients receive at a competitive price.
We also offer a 30-day money-back guarantee, so you can be sure Juniper is right for you.
Ready to see if Juniper is right for you? You can check your eligibility here.
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