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Do B Vitamins Improve Thyroid Function?

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Do you know the importance of B vitamins? According to research, many Americans are deficient in these vital nutrients. A deficiency in B vitamins can lead to a host of problems, including low energy, concentration problems, and even a sluggish metabolism. Read on to see how B vitamins can influence your metabolism.

The metabolism is run by your thyroid. One of the main functions of the thyroid is to control energy production and use in the body. If you have a sluggish metabolism, your thyroid hormone levels are likely low. B vitamins have been attributed to boosting metabolism and energy release, but do they really help reverse a sluggish thyroid?

Read on to see how B vitamins affect your metabolism and thyroid.

The Role of B Vitamins

B vitamins plan many roles in the body. The B vitamin family is made up of 8 related vitamins.


Thiamin produces cellular energy from foods and supports the nervous system's function. This is one of the main B vitamins used for thyroid health and metabolism. You can find thiamin in lentils, pork, whole grains, and nuts. Niacin is vitamin B2 and it supports cellular energy production and metabolism. Specifically, vitamin B2 is known for its support of heart health. You can find vitamin B2 in meat, fish, whole grains, lentils, and peanuts.

Vitamin B6

Vitamin B6 is used in over 100 cellular reactions, making it incredibly important for overall health. Vitamin B6 metabolizes amino acids and glycogen, which is one of the biggest functions of metabolism. Vitamin B6 is found in meat, banana, fish, cereal, and spinach.


Riboflavin supports energy at the cellular level. You will find riboflavin in milk, eggs, salmon, broccoli, cereal, milk, and eggs.


Folate, or folic acid, is an essential B vitamin for the nervous system. Folate can be found in leafy vegetables, liver, beets, avocados, and dates.


Biotin is used to support healthy hair, nails, and skin. It also is used by the thyroid to metabolize protein, fat, and carbohydrates. Biotin is found in organ meat, cheese, soy, and brewer's yeast.

Vitamin B12

Vitamin B12 is essential for energy production, memory, and brain health. The vitamin is used in DNA synthesis and is found in meat, eggs, and milk.

Pantothenic Acid

This B vitamin is found in organ meats, eggs, whole grains, nuts, rice, and milk. This acid is supportive of cellular energy production.

B Vitamins and Your Metabolism

B vitamins are crucial for boosting your energy and preventing fatigue. What happens when you don't have energy? You not only move less and exercise less often, but your body is also suffering from internal fatigue. This actually slows down your metabolism and makes it harder to process food and nutrients, even leading to weight gain.

According to studies, up to 40 percent of adults do not get enough B vitamins in their diet, which could influence energy and stress levels. In extreme cases, a lack of B vitamins will cause mood swings, chronic fatigue, and metabolism that chugs along at a glacial pace. It will be difficult to live a healthy lifestyle with insufficient vitamin B levels.

Symptoms of B Vitamin Deficiency
  • Lack of energy
  • Unexplained weight gain
  • Mood swings
  • Inflamed tongue
  • Difficulty remembering
  • Trouble concentrating
  • Tingling in hands and feet

How B Vitamins Boost Thyroid Function

Your thyroid uses all B vitamins to convert and use energy and prevent the accumulation of fat. Your thyroid also uses B vitamins to create thyroid hormones that are used to boost metabolism. The fewer thyroid hormones you have, the slower your metabolism will be. Common side effects of low thyroid hormones are fatigue, which also overlaps the symptoms of low vitamin B levels. Your thyroid specifically uses large quantities of vitamin B1, B2, B3, B6, B12, and B5.

B Vitamins Key for a Healthy Metabolism

If you suffer from a sluggish thyroid and slow metabolism, B vitamins can make a big difference. Increase your intake of B-rich foods and supplement with the right combination of herbs and other nutrients to balance your hormones and reset your metabolism. It will only take a few weeks for your metabolism to start functioning normally.





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