Yes, hypothyroidism (underactive thyroid) commonly causes bowel problems, primarily constipation, because low thyroid hormone slows down metabolism and gut motility, leading to slower digestion, harder stools, and difficulty passing them. It can also affect motility, causing symptoms like Irritable Bowel Syndrome (IBS) with constipation or diarrhea, and issues like bloating or abdominal pain, as the thyroid hormone directly impacts the digestive system's speed and function.
Conversely, in cases of hypothyroidism, the process is slowed down and too much water is absorbed because the stool remains in the colon too long. This leads to hard, dry stools that are difficult to pass; it is typically considered constipation when a person has fewer than three bowel movements in a week.
Up to 25% of patients with hyperthyroidism have mild-to-moderate diarrhea with frequent bowel movements[22,32]. Some degree of fat malabsorption is usually present and may reach 35 g/d[33]. Intestinal hypermotility in thyrotoxicosis reduces small bowel transit time, especially when diarrhea is present[18].
Hypothyroidism is a common endocrine disorder in which your child's thyroid gland does not produce enough thyroid hormone. A child with an underactive thyroid may experience fatigue, weight gain, constipation, decreased growth, and a host of other issues.
Patients with hypothyroidism and IBS often have comorbid gastrointestinal (GI) disorders detrimental to LT4 absorption. Due to thyroid hormone's impact on bowel motility, irritable bowel syndrome (IBS) with constipation and/or diarrhea is very common among patients with hypothyroidism.
Digestive symptoms of an underactive thyroid can include dyspepsia (chest pain), low stomach acid, poor absorption, constipation, gallstones, anemia and bacterial overgrowth in the small intestine. The thyroid gland can have a significant impact on the gastrointestinal system.
Symptoms of an underactive thyroid
Hypothyroidism that isn't treated can lead to other health problems, including:
On the other hand, it is important to remember that some berries and citrus fruits like strawberries and peaches contain goitrogens. Since it can interfere with the thyroid glands' iodine uptake, eating these fruits of a larger quality can lead to hyperthyroidism.
Hypothyroidism can affect anyone. It's most common among females over age 60, particularly after menopause.
While usually linked to constipation, straining, pregnancy, or aging, research shows surprising ties to hypothyroidism and menopause. Both can slow digestion, increase straining, and weaken tissues that support rectal veins, raising hemorrhoid risk.
An increasing body of evidence suggests that the gut microbiota plays a pivotal role in the pathogenesis of thyroid disorders. Primarily, the gut microbiota may modulate thyroid function by influencing the uptake of thyroid-relevant micronutrients (28).
Those symptoms most commonly related to thyroid deficiency include forgetfulness, fatigue, mental slowness, inattention, and emotional lability. The predominant affective disorder experienced is depression. Perceptual changes may develop with alterations of taste, hearing, and vision.
Hypothyroidism can also cause hypersomnia, or the irrepressible need to sleep or lapses into sleep that occur on a daily basis. Hypersomnia can occur due to an underlying medical disorder, and hypothyroidism is considered the leading cause of hypersomnia due to a disorder in the endocrine system.
Celiac disease and atrophic gastritis are autoimmune diseases, and its prevalence is higher in patients with thyroid dysfunction (8). In subjects with hypothyroidism, the occurrence of these disorders may be associated with higher doses of levothyroxine (9).
Biotin (vitamin B7)
We recommend you be aware that these mega doses of biotin can sometimes result in incorrect TSH, FT4 and FT3 levels and may give a reading that suggests an overactive thyroid (hyperthyroidism).
For thyroid health, the "one thing" to focus on daily is a source of iodine, found in dairy, eggs, or seafood, and selenium, best from a few Brazil nuts, both crucial for hormone production, but a balanced breakfast with protein, fiber, and healthy fats, like eggs with spinach or oatmeal with berries, provides comprehensive support, while avoiding excessive iodine or simple sugars is key.
Caffeine may influence thyroid hormone levels. Research suggests that drinking less than four cups per day may lower TSH levels, potentially benefiting those with hypothyroidism. However, consuming excessive amounts of caffeine for extended periods may reduce T3 levels, worsening symptoms.
Even though you know a medicine for thyroid, never take it before inquiring about it from your doctor. 2. Cut down on Sugar and Caffeine: As you know excessive sugar intake can contribute to your weight gain, and if you are already dealing with thyroid, then the condition can be much worse.
Hypothyroidism is very common in patients over 60 years of age and steadily increases with age (see Hypothyroidism brochure).
In people living with an underactive thyroid (hypothyroidism), the body's metabolism slows down. This can often lead to many symptoms, including lethargy and fatigue.
Contact your healthcare provider as soon as possible if you notice these common symptoms of hypothyroidism:
The afternoon crash means your blood sugar has dropped too low for your brain and body to function normally, causing you to become drowsy, mentally foggy, tired, and unmotivated. Unstable blood sugar is notorious for making it difficult to manage an autoimmune disease such as Hashimoto's hypothyroidism.
Gastrointestinal Problems
Often, patients with hypothyroidism report stomach and digestive issues in conjunction with other symptoms.