Vitamin B1, also called thiamine, is one of the essential B vitamins needed for body health. It's found in many foods and can also be taken as supplements.
Body cells need vitamin B1 or thiamine to make energy, grow, and do vital functions. Healthy adults can get enough from their diet.
This article covers what vitamin B1 is, appropriate doses, sources, and health risks of deficiency.
What is vitamin B1 or thiamine?
Vitamin B1 or thiamine is one of the eight key vitamins in the B complex. It's water-soluble and can only be stored in small amounts in the liver. So the body needs a steady supply from food or supplements to avoid deficiency.
Vitamin B1 helps break down glucose (sugar). It's part of how the body gives cells energy. It's also important for cells to do their jobs and grow.
People with some conditions like diabetes, certain gut issues, surgery, heart failure, or alcohol problems may need to watch for vitamin B1 deficiency.
Daily recommended doses of vitamin B1 (thiamine)
Getting enough daily vitamins, including B1, is important for your body to work well and do all its vital functions.
The daily recommended amount of vitamin B1 changes based on age, gender, and status, in milligrams, as shown below:
| Age | Dose for males | Dose for females |
| 0 - 6 months | 0.2 mg | 0.2 mg |
| 7 - 12 months | 0.3 mg | 0.3 mg |
| 1 - 3 years | 0.5 mg | 0.5 mg |
| 4 - 8 years | 0.6 mg | 0.6 mg |
| 9 - 13 years | 0.9 mg | 0.9 mg |
| 14 - 18 years | 1.2 mg | 1.0 mg |
| 19 - 50 years | 1.2 mg | 1.1 mg |
| 50 years and above | 1.2 mg | 1.1 mg |
| Pregnant women | 1.4 mg | |
| Breastfeeding women | 1.4 mg |
Sources of vitamin B1 (thiamine)
Most people get enough vitamin B1 (thiamine) from their diets. It's in many different foods, and some foods are fortified to make sure most people get it.
Foods rich in vitamin B1 include:
- Whole grains.
- Meats.
- Fish.
- White rice Long grain.
- Breakfast cereals Fortified.
- Fortified egg noodles.
- Salmon fish Mackerel.
- Black beans.
- Mussels.
- Tuna.
Diet is the best way to get nutrients like vitamins including B1, but vitamin B1 can also come as supplements you can get with medical advice.
The health importance of vitamin B1 (thiamine)
Vitamin B1 (thiamine) is important for keeping good overall health. A B1 deficiency might not be diagnosed and can lead to bad health outcomes, including death, The health benefits of thiamine include:-
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The body uses vitamin B1 to get energy needed for cell growth and to support body functions.
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Vitamin B1 helps some enzymes that work in glucose metabolism, so thiamine levels are important in digestive and metabolic diseases.
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Thiamine helps diabetic patients keep their blood glucose levels stable. blood glucose they have, so lacking thiamine can cause complications for diabetics.
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Getting enough thiamine helps boost heart and blood vessel health by improving circulation and promoting healthy red blood cell production.
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Research found that people with Alzheimer's disease Those who took thiamine supplements had less cognitive decline than those who didn't.
Vitamin B1 (Thiamine) Deficiency
Vitamin B1 (Thiamine) deficiency can happen when the body doesn't get enough B1 from food or can't absorb it well.
Vitamin B1 deficiency is not common, especially since you can get the daily recommended amount from your diet.
There are some reasons that can cause thiamine deficiency, including:-
- Bariatric surgeries Or weight loss surgeries.
- Having diabetes.
- Alcohol use disorders.
A healthcare provider might suggest testing thiamine levels for some people, especially before and after weight loss surgery. This can help catch thiamine deficiency early, get support to raise levels back to normal, and avoid complications.
Symptoms of vitamin B1 (thiamine) deficiency
When thiamine levels drop a lot in the body, some symptoms and signs may start to show up, These symptoms include:-
- Heart and blood vessel problems like an enlarged heart.
- Confusion.
- Weight loss.
- Loss of appetite.
- Short-term memory loss.
- Some mental issues.
- Muscle weakness.
Also, severe or long-term thiamine deficiency can cause more serious complications, even death.
Side effects of vitamin B1 (thiamine)
Thiamine doesn't stay long in the body, which is one reason for deficiency. Taking vitamin B1 supplements is not thought to cause harmful side effects.
Also, there's no upper limit for vitamin B1 supplements by mouth, and high doses aren't expected to cause bad reactions. But like any supplement, it's important to check with a healthcare provider about the right dose.
In the end, vitamin B1 or thiamine is important for basic body functions. It's not stored in large amounts in the body, so you need a steady supply of it from your diet.
