Biotin (Vitamin B7) Test
This test can help determine the level of biotin (vitamin B7) you have in your blood. Biotin is a water-soluble vitamin that helps your body break down proteins, carbohydrates, and fats into energy. Biotin also allows cells to communicate with one another and tell genes what to do. Read moreThis biotin blood test can help determine the amount of biotin (vitamin B7) you have in your blood. Biotin is a water-soluble vitamin that helps your body break down proteins, carbohydrates, and fats into energy. Biotin also allows cells to communicate with one another and tell genes what to do.
Identifying and addressing nutrient deficiencies are important steps toward better health. Your body does not produce most vitamins and minerals, so you must get them from food or supplements. How nutrients work in your body is influenced by more than just what you eat. These factors include genetics, age, health conditions, medications, metabolism, and how well your body absorbs nutrients.
Buy your own biotin deficiency test online with Quest. No doctor’s visit is required – simply purchase biotin testing, visit a nearby Quest® location for sample collection, and get fast results.
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If your body is not absorbing certain nutrients properly, your doctor may suggest you consider taking a supplement for that nutrient.
While it is unlikely to get too much of a nutrient if you are taking a supplement, getting too much, known as toxicity, is possible. It's recommended to confirm a deficiency through testing and talk with your doctor prior to taking supplements.
Water-soluble and fat-soluble vitamins differ in how they are absorbed by the human body.
A water-soluble vitamin dissolves in water and is easily absorbed by the body. Your body does not store these vitamins for long, so any extra will be eliminated in your urine. Because of this, it's important to consume them every day.
A fat-soluble vitamin dissolves in fats and oils and is absorbed with the fats you eat. Your body stores any extra in your liver or fatty tissues. Because of this, you don't need to consume them every day.
1. Saleem F, Soos MP. Biotin Deficiency. [Updated 2023 Feb 20]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK547751
2. National Institutes of Health. Biotin. Accessed October 31, 2024. https://ods.od.nih.gov/factsheets/Biotin-HealthProfessional/