Birth Control Pills: Benefits, Risks, and How They Work

Birth control pills, or "the pill," are among the most commonly prescribed contraceptives in the U.S. Many women use the pill not only for pregnancy prevention but also for managing hormonal acne, reducing menstrual cramps, and controlling heavy bleeding.

What’s in the Pill?

The pill contains synthetic versions of the hormones estrogen and/or progesterone. There are two main types:

  1. Combined Oral Contraceptive: Contains both estrogen and progesterone.
  2. Progesterone-Only Pill (also known as the “mini-pill”): Suitable for women who cannot take estrogen, such as those who are breastfeeding.

How Does the Pill Work?

The pill primarily works by:

  • Preventing Ovulation: It stops the ovaries from releasing an egg.
  • Thickening Cervical Mucus: This makes it more difficult for sperm to reach the uterus and fertilize an egg.

Most birth control pills come in a cyclic formulation, with 21-24 days of active hormone pills followed by a 4-7 day hormone-free period, during which bleeding occurs due to the drop in hormone levels. This bleeding is not a true period but rather a response to the hormone withdrawal.

Potential Benefits of Birth Control Pills

While birth control pills can temporarily relieve certain symptoms, it’s essential to recognize that they may not address the root causes of these issues. Common symptoms for which the pill may provide short-term relief include:

  • Hormonal Acne: Synthetic hormones can reduce androgens, which are linked to sebum production (an oily substance that can clog pores).
  • Menstrual Cramps and Heavy Bleeding: Reduced prostaglandins (chemicals that cause uterine contractions) can lessen cramping and bleeding.
  • Irregular Cycles: The synthetic hormones in birth control create a regular bleeding pattern by overriding natural hormone production.
  • Endometriosis: For women with estrogen-dominant conditions like endometriosis, birth control can temporarily halt excess estrogen production, potentially reducing symptoms.

Side Effects of Hormonal Birth Control

While effective, the pill can lead to side effects, including:

  • Headaches: Fluctuations in estrogen levels can trigger headaches and migraines.
  • Mood Changes: Estrogen and progesterone impact neurochemistry, affecting hormones related to mood, like serotonin and dopamine.
  • Nausea: Estrogen may irritate the stomach and impact the gut-brain axis, causing digestive discomfort.
  • Breast Tenderness and Spotting
  • Potential Nutrient Deficiencies: Birth control can deplete several nutrients, such as:
    • B Vitamins (B6, B9, B12)
    • Folic Acid
    • Vitamins C and E
    • Magnesium, Zinc, Selenium

Stopping the Pill: Understanding “Post Birth Control Syndrome”

When women stop taking birth control, they may experience “Post Birth Control Syndrome,” a collection of symptoms that arise as the body readjusts to its natural hormone production. Although not a formally recognized condition, post-pill symptoms are common and include:

  • Irregular, Heavy, or Painful Periods
  • Mood Swings, Anxiety, and Acne
  • Digestive Issues
  • Headaches
  • Temporary Fertility Issues

It can take some time for the body to reestablish a regular menstrual cycle, especially if the pill was masking an underlying condition such as PCOS or endometriosis. Some women may experience post-pill amenorrhea, where menstruation is delayed after stopping the pill.

Supporting Hormone Balance After Stopping Birth Control

For women coming off the pill—especially those trying to conceive—focusing on hormone balance can ease post-pill symptoms. Here are some practical tips:

  • Prioritize Nutrient-Dense Foods: Ensure you’re eating enough to fuel all bodily processes, including hormone production.
  • Micronutrient and Mineral Testing: Blood tests or Hair Tissue Mineral Analysis (HTMA) can help identify deficiencies.
  • Consume Adequate Protein: Hormones are made from amino acids. Include meats, fish, legumes, nuts, and seeds in your diet.
  • Limit Added Sugars: Opt for natural sugars from fruits like dates, apples, and berries to avoid blood sugar spikes, which can disrupt hormones.
  • Incorporate Low-Impact Exercise: Activities like yoga, pilates, strength training, walking, or swimming can reduce inflammation and support balanced blood sugar levels.
  • Morning Sunlight: Exposure to sunlight in the morning helps maintain a healthy circadian rhythm, which supports sleep and hormone regulation.
  • Prioritize Sleep: Aim to go to bed before 10 pm to align with your natural cortisol cycle.
  • Consider Castor Oil Packs: External castor oil applications can aid in hormone detoxification.
References
  1. https://www.ncbi.nlm.nih.gov/books/NBK430882/ 
  2. https://pubmed.ncbi.nlm.nih.gov/34538035/ 
  3. https://pubmed.ncbi.nlm.nih.gov/23852908/ 
  4. https://pmc.ncbi.nlm.nih.gov/articles/PMC9677105/#s2