Why Did My Period Stop? Understanding the Link Between Nutrition and Menstrual Health

When your period stops, it may be a sign that your body needs more food, energy, or medical support. Amenorrhea is the medical term for not getting your period.

There are two main types:

• Primary amenorrhea: When someone has not gotten their first period by age 15.

• Secondary amenorrhea: When someone who used to get their period stops getting it for several months.

Periods can stop for many reasons, including pregnancy, breastfeeding, certain health conditions, stress, and not eating enough.

Your body needs enough food to support important jobs, such as keeping your heart beating, helping you think, and keeping your bones strong. Food also helps your body make the hormones needed for your menstrual cycle.

When you do not eat enough, your brain may change the signals that control your hormones. This can cause your period to become irregular or stop.

This can happen when someone:

• Skips meals or snacks

• Eats less food than their body needs

• Avoids certain foods or food groups

• Exercises without eating enough to replace the energy used

• Experiences ongoing stress

This can happen at any body size. You do not have to be underweight or have an eating disorder diagnosis for not eating enough to affect your period. 

When your period stops because you are not getting enough energy, it can affect your health in several ways:

1. Weaker bones

Estrogen is a hormone that helps keep your bones strong. When estrogen levels are too low, your bones may not grow or stay as strong as they should. Over time, this can increase your risk of broken bones and osteoporosis, a condition that makes bones weaker. This is especially important during the teenage years, when bones are still growing.

2. Changes in fertility

Not eating enough can affect ovulation, which is when your body releases an egg. This can make it harder to become pregnant. For many people, periods and ovulation can return when they consistently get enough food and energy. However, pregnancy can still happen before a period returns.

3. Other health changes

Not getting enough food can also cause tiredness, trouble concentrating, mood changes, and other health problems. These effects can happen even if your weight has not changed.

For many people, periods can return when their bodies get enough food and energy. This may mean eating regular meals and snacks, eating more food, and changing exercise habits when needed. Some people may also need to weight restore as part of recovery. 

It can take time for periods to return, and everyone's recovery is different. Working with a treatment team can help you get the support you need. If your period has stopped for three months or longer, talk with a healthcare provider. They can help find the cause and decide what care you need.

Your body needs enough food to support all of its important jobs. Losing your period because you are not eating enough is not a sign that your body is doing well on less food. It may be a sign that your body needs more energy and care. Getting enough food and seeking medical support can help protect your bones, hormones, and overall health.

References: 

1 American Society for Reproductive Medicine. (2024). Current evaluation of amenorrhea: A committee opinion.Fertility and Sterility, 122(1), 52–61. https://doi.org/10.1016/j.fertnstert.2024.02.001

2 Dobranowska, K., Plińska, S., & Dobosz, A. (2024). Dietary and lifestyle management of functional hypothalamic amenorrhea: A comprehensive review. Nutrients, 16(17), 2967. https://doi.org/10.3390/nu16172967

3 Carlson, J. L., & Lemly, D. C. (2024). Medical considerations and consequences of eating disorders. Focus, 22(3), 301–306. https://doi.org/10.1176/appi.focus.20230042