Vitamin B1 Food Sources & Their Role in Supporting Energy Metabolism
Vitamin B1 (thiamine) contributes to normal energy-yielding metabolism by acting as a coenzyme in carbohydrate metabolism and supporting nerve, heart, and cell function. Since the body does not produce and retain much of this vitamin, getting it from vitamin B1 foods becomes very important.
Pork, fish, whole grains, legumes, and enriched foods are some of the many sources that supply this crucial vitamin. Read on to explore the best vitamin B1 food sources, their benefits and daily requirements.
Foods High in Thiamine (Vitamin B1)
Vitamin B1 is found in a variety of vegetarian and non-vegetarian foods. This means that most people can meet their daily thiamine requirements through a balanced diet. The following are some good sources of vit B1:
Pork
Pork is a very rich source of vitamin B1. Per 100-gram serving of pork, you will get around 0.7 mg of thiamine. It is also a rich source of high-quality protein, vitamin B6, B12, zinc and selenium.
These nutrients help support muscle health, red blood cell formation, and healthy immune function. Lean pork like pork tenderloin can be included in moderation in a balanced diet.
Flaxseeds
Flaxseeds are nutrient-dense foods that contain vitamin B1. These seeds contain vitamin B1, with about 1.6 mg of thiamine in 100 grams of flaxseeds. Inclusion of a small quantity of these seeds in your diet may provide you with a substantial amount of this essential vitamin.
These seeds are also rich in plant-based omega-3 fatty acids (ALA), dietary fibre, magnesium, and manganese. Grind the flaxseeds and add them to atta, porridge, milkshakes, curd or homemade chutneys.
Salmon
Salmon provides you with approximately 0.3 mg of vitamin B1 per 100 grams. Besides this, it is an excellent source of high-quality protein. Besides providing vitamin B1, it provides other essential nutrients.
Salmon is an excellent source of omega-3 fatty acids, vitamin D and B12, which are essential for the heart, brain, bones and nerves. Grilled or baked salmon is an excellent choice for Indian diets which include fish in their regular diet.
Note: Thiamine content can vary depending on the species and preparation of salmon.
Lentils (Masoor Dal)
Lentils are one of the best vegetarian sources of vitamin B1 and can be easily included in everyday Indian meals. Per 1 cup of cooked lentils provides you with around 0.3 to 0.4 mg of vitamin B1.
Along with this, lentils provide you with plant-based protein, dietary fibre, iron, folate, magnesium and potassium. You can prepare lentils as dal or add them to soups and khichdi.
Black Beans and Other Legumes
Legumes such as black beans, navy beans, black-eyed peas, rajma and other types of beans are a good source of vitamin B1. Including 1 cup of cooked black beans offers around 0.4 mg or more of vitamin B1.
Apart from vitamin B1, these legumes are an excellent source of protein, dietary fibre, iron, magnesium, potassium and zinc. For Indian diets, you can consider including rajma, lobia and other dals as a practical alternative to imported beans.
Green Peas
Green peas are also considered vegetables with a rather good supply of vitamin B1. There are about 0.4 mg of thiamine contained in one cup of boiled green peas.
Also, green peas contain protein, fibre, vitamin C, vitamin K, folate and manganese. Fresh and frozen green peas can be easily added to a number of Indian dishes, including matar pulao, vegetable curries, poha, upma, and mixed vegetable dishes.
Soybeans and Tofu
Soybeans and their derivative foods, including tofu, provide vitamin B1 and protein of high biological value. Even though a cup of firm tofu has approximately 0.4 mg of thiamine, the amount can vary by product and preparation.
Soy foods provide protein, iron, magnesium, and other B vitamins. Tofu is a good addition to curries, stir-fries and salads, while cooked soybeans and edamame can be added to meals and snacks.
Brown Rice and Whole Grains
Brown rice contains approximately 0.4 mg of vitamin B1 per cooked cup, and it retains more of the grain's nutrients than highly polished white rice. Other whole grains can also provide vitamin B1, including oats, whole-wheat bread, quinoa, and wheat.
Apart from that, whole grains contain carbohydrates, fibre, magnesium and other B vitamins. Thus, replacing some refined grains with whole grains can increase the nutrient density of the diet.
Sunflower Seeds and Nuts
Sunflower seeds, macadamia nuts, pistachios, and other nuts and seeds are some notable sources of vitamin B1, which is relatively abundant in these foods. One ounce of sunflower seeds provides about 0.3 mg of thiamine.
Sunflower seeds and nuts also contain fats, protein, magnesium, selenium, and vitamin E, depending on the type of food. Thus, you can sprinkle sunflower seeds, peanuts, and other available nuts on salads and breakfasts.
Asparagus and Other Vegetables
Asparagus contains about 0.3 mg of thiamine per cooked cup and is one of the vegetables with relatively high thiamine content. Other vegetables contain smaller amounts of vitamin B1, including potatoes, spinach, tomatoes, Brussels sprouts, and squash. Additionally, asparagus is a source of fibre, folate and vitamins A, C and K.
Recommended Daily Intake of Vitamin B1
The amount of thiamin required varies as per age, sex, and life stage. The following are the recommended intake levels for thiamin:
| Age/Life Stage | Recommended Daily Intake of Vitamin B1 |
| Birth–6 months | 0.2 mg/day |
| 7–12 months | 0.3 mg/day |
| 1–3 years | 0.5 mg/day |
| 4–8 years | 0.6 mg/day |
| 9–13 years | 0.9 mg/day |
| 14–18 years – Males | 1.2 mg/day |
| 14–18 years – Females | 1.0 mg/day |
| 14–18 years – Pregnant/Breastfeeding females | 1.4 mg/day |
| 19–50 years – Males | 1.2 mg/day |
| 19–50 years – Females | 1.1 mg/day |
| 19–50 years – Pregnant/Breastfeeding females | 1.4 mg/day |
| 51+ years – Males | 1.2 mg/day |
| 51+ years – Females | 1.1 mg/day |
Note: In most cases, pregnant and lactating women need a higher intake.
Adding vitamin B1-rich foods to your diet will support energy metabolism, proper nerve function, growth, and cellular activity. Thiamine is naturally available in foods like pork, whole grains, legumes, seeds, and fish, and even some fortified foods may help meet your body's thiamine requirement.
If you experience any deficiency symptoms, seek medical advice and treatment from professionals. To ensure that you add enough food that has vitamin B1 in your diet, opt for a variety of foods.
Reader Information: The information shared is only for general educational purposes. Thiamine (vitamin B1) contributes to normal energy-yielding metabolism, nervous system function, psychological function, and heart function. However, no single vitamin or vitamin-rich food can prevent, treat, or cure diseases on its own. Vitamin B1-rich foods should be consumed as part of a balanced diet and healthy lifestyle. Individual nutritional requirements may vary, and those concerned about their nutritional status should seek advice from a qualified healthcare professional.
