The ketogenic diet is a popular, low-carb, high-fat, and high-protein diet that has been linked to weight loss and other health benefits. However, the keto diet can also have a strange effect on a person's period. Some people on the keto diet report irregular periods, while others say their monthly cycle vanished altogether — a phenomenon called amenorrhea. In fact, amenorrhea seems to be one of the main side effects of the diet.
The keto diet can lead to rapid weight loss, which can cause a person's estrogen levels to fall. Low estrogen can, unfortunately, lead to menstrual irregularities. The stress of dietary change can also be a factor, as it can increase the stress hormone cortisol, which can interfere with reproductive health. Calorie restriction, which often occurs on the keto diet, can also interfere with the female reproductive cycle and thyroid function, leading to disruptions in menstruation.
On the other hand, the keto diet may also help regulate periods in people with polycystic ovarian syndrome (PCOS). Research indicates that the keto diet can help restore menstruation and fertility in people with PCOS by inducing weight loss.
Characteristics | Values |
---|---|
Effect on Periods | Irregular or disrupted menstruation, amenorrhea (vanishing of periods altogether), heavy or frequent periods, heavy and unusual pain before and after the cycle |
Reasons for Irregular Period | Calorie deficit, not consuming enough water and iron supplements, lower estrogen levels, rapid weight loss, stress, thyroid function, hormonal imbalance |
Effect on Fertility | Keto can cause infertility due to lower estrogen levels |
Effect on PMS | Keto may help with painful PMS symptoms |
What You'll Learn
Keto can cause irregular periods
The keto diet can cause irregular periods, and in some cases, periods may stop altogether. This is known as amenorrhea. Amenorrhea is the absence of a period for three months or more.
Weight Loss
The keto diet is a low-carb, high-fat diet that causes the body to burn fat instead of carbohydrates through a process called ketosis. This often leads to rapid weight loss, which can cause a sharp drop in estrogen levels. Estrogen is responsible for regulating the menstrual cycle, so when weight and estrogen levels drop, periods can become irregular or stop altogether.
Hormones
The keto diet can also affect the hormones that regulate the menstrual cycle. For example, the keto diet can cause a drop in leptin levels, which is involved in regulating the menstrual cycle. Additionally, the diet can affect the luteinizing hormone, which plays a role in regulating the menstrual cycle.
Nutrient Deficiencies
The keto diet cuts out carbohydrates, calories, and some nutrient-dense foods. This can lead to nutrient deficiencies, which can impact the menstrual cycle. For example, not consuming enough water and iron supplements during the keto diet can disrupt the cycle.
Stress
The keto diet can be stressful for the body, and stress can impact the menstrual cycle. The diet may trigger a stress response in the body due to reduced calorie intake. Additionally, the rapid weight loss associated with the keto diet can lead to the release of stored hormones and toxins, which can affect the hormones that regulate the menstrual cycle.
Thyroid Function
A drop in carbohydrate intake can affect thyroid hormone production. For those susceptible to impaired thyroid function, this can impact the menstrual cycle.
While the keto diet can cause irregular periods, it's important to note that this is usually temporary. Once the body adjusts to the diet, periods typically return to their regular pattern. However, it's always a good idea to consult a doctor if you have any concerns about your menstrual cycle or overall health.
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Keto can cause amenorrhea (loss of menstruation)
The keto diet can cause amenorrhea, or the loss of menstruation, in some women. Amenorrhea is one of the main side effects of the diet, with 45% of female participants in one study reporting menstrual dysfunction. This can be caused by the quick weight loss that often accompanies the keto diet, as well as the reduced calorie intake and lower estrogen levels that may result from it.
When the body experiences quick weight loss, it can affect the release of hormones from the brain, disrupting the normal choreography of hormone release that allows for regular menses. Estrogen, in particular, is responsible for regulating the menstrual cycle, and as weight drops, so do estrogen levels. This can lead to irregular or absent periods.
In addition, the keto diet's restriction of carbohydrates can affect thyroid hormone production, which can also impact the menstrual cycle. A drop in carbohydrates can also lead to problems with ovulation and menstruation. Cutting too many calories on the keto diet can also contribute to irregular periods or amenorrhea.
However, it's important to note that menstrual issues are not specific to the keto diet and can be caused by various factors such as stress, too little exercise, and other health issues. If you are experiencing amenorrhea, it is recommended to consult a doctor, as it can be a sign of an underlying health condition.
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Keto can cause heavy or unusual pain before and after the cycle
The keto diet can have a range of effects on the menstrual cycle, and some women report experiencing heavy and unusual pain before and after their cycle. This can be caused by several factors related to the keto diet.
Firstly, a rapid drop in carbohydrates can affect thyroid hormone production, which is linked to reproductive health and menstruation. A decrease in thyroid function can disrupt the menstrual cycle. Additionally, a significant drop in carbohydrates can affect the production of the hormone estrogen, which regulates the menstrual cycle. A sharp decline in estrogen levels can lead to menstrual irregularities, including heavy and unusual pain.
Secondly, the keto diet often results in rapid weight loss, which can also impact hormone levels. When the body undergoes quick weight loss, estrogen levels tend to drop. This reduction in estrogen can cause changes in the menstrual cycle, potentially leading to heavier or more painful periods.
Furthermore, the keto diet may also trigger a stress response in the body due to reduced calorie intake. The stress hormone, cortisol, can interfere with reproductive health and disrupt the menstrual cycle, potentially causing heavier or more painful periods.
It is important to note that the effects of the keto diet on the menstrual cycle vary from person to person. While some women may experience heavier and more painful periods, others may notice improvements in their symptoms. The keto diet has been shown to have a positive impact on women with polycystic ovarian syndrome (PCOS), helping to regulate their cycles and improve fertility.
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Keto can cause rapid weight loss, which can lead to hormonal changes and irregular periods
The keto diet is a globally trending diet that revolves around weight loss, burning extra saturated fats, fat loss, and reshaping body metabolism. While it has endless health benefits to offer, it can also have strange or adverse effects on some people. One such effect is irregular or disrupted menstruation, with some women reporting irregular period cycles, amenorrhea (the vanishing of periods altogether), heavy or frequent periods, and unusual pain before and after the cycle.
The keto diet can cause rapid weight loss, which can lead to hormonal changes and irregular periods. When someone is on a keto diet, they tend to eat less food while burning more calories, which is an effective combination for weight loss. However, if fat loss happens too quickly, a woman's estrogen levels will fall, and low estrogen can drive menstrual irregularities.
Estrogen is responsible for regulating the menstrual cycle, and as weight drops, so do estrogen levels. A study found that when participants lost an average of 17 pounds, their levels of the estrogen hormones estrone and estradiol decreased by 5.7% and nearly 10%, respectively.
In addition to weight loss, calorie restriction can also interfere with the female reproductive cycle. Keto diets reduce hunger hormones, leading to a significant decrease in calorie intake, which can impact the hormone leptin. Leptin signals to the brain that there is enough energy coming in from food, and when leptin is in range, it tells the body that it is safe to reproduce. However, when energy intake is low, leptin signaling dials down, and the brain gets the message that it is not a safe time for reproduction, resulting in hypothalamic amenorrhea.
Therefore, keto can cause rapid weight loss, which can lead to a decrease in estrogen and leptin levels, resulting in hormonal changes and irregular periods.
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Keto can help balance hormones and improve reproductive health
The keto diet can positively impact the menstrual cycle and reproductive health of women, especially those with polycystic ovarian syndrome (PCOS).
How keto can help balance hormones
The keto diet can help balance hormones in several ways:
- Improving insulin function: Keto can improve insulin function by reducing insulin resistance, which is linked to polycystic ovary syndrome (PCOS) and female infertility, menstrual irregularity, and missed periods.
- Balancing blood sugar and hormones: Eating fewer carbs and more protein and fat during the luteal phase of the menstrual cycle can help combat insulin resistance and balance blood sugar and hormones.
- Lowering ghrelin: Being in a state of ketosis may help lower the "hunger hormone" ghrelin, which stimulates appetite and increases food intake and fat storage.
- Reducing inflammation: Ketones, especially beta-hydroxybutyrate (BHB), have anti-inflammatory properties that can help mediate discomfort associated with the menstrual cycle.
- Improving sleep quality: Most people report better sleep quality once they're in ketosis, which may be due to the compound adenosine, a known anticonvulsant and essential chemical for moderating sleep behaviour.
How keto can improve reproductive health
The keto diet can improve reproductive health, especially in women with PCOS:
- Restoring menstruation and fertility: Women with PCOS who followed the keto diet reported regular periods shortly after starting the diet, and some were able to conceive naturally.
- Improving fertility outcomes: Several studies suggest that low-carb diets may improve fertility outcomes in overweight and obese women.
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Frequently asked questions
The keto diet is a globally trending diet that can lead to weight loss and has been linked to other health benefits.
The keto diet can influence the regularity of your menstrual cycle. Some women have reported irregular periods, amenorrhea (vanishing of periods altogether), heavy or frequent periods, and unusual pain before and after the cycle.
Experts suggest increasing your calorie intake by 300 more calories per day, with more carb-heavy diets.