Shopping Cart

0

Your shopping bag is empty

Go to the shop

Source Naturals Vitamin B-1 (Thiamine) 100 mg - 250 Tablets

$52.78

Dresses Size Chart

Dress Size Chart (Inch)
DRESSES
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 34"-35"
S 2-4 33"-34" 26"-27" 36"-37"
M 6-8 35"-36" 28"-29" 38"-39"
L 10-12 37"-39" 30"-32" 40"-42"
XL 14 40"-42" 33"-35" 43"-45"
Dress Size Chart (cm)
DRESSES
SIZE IN CM
SIZE US / CAN BUST WAIST HIPS
XS 0 78.7-81.2 60.9-63.5 86.3-88.9
S 2-4 83.8-86.3 66-68.5 91.4-93.9
M 6-8 88.9-91.4 71.1-73.6 96.5-99
L 10-12 93.9-99 76.2-81.2 101.6-106.6
XL 14 101.6-106.6 81.2-88.9 109.2-114.3

Swimwear Size Chart

Dress Size Chart (Inch)
SWIMWEAR
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 33"-34"
S 2 33"-34" 26"-27" 35"-37"
M 4 35"-36" 28"-29" 37"-38"
L 6 37"-39" 30"-32" 39"-41"
XL 8 40"-42" 33"-35" 42"-44"

Shoes Size Chart

US EURO UK AUS JAPAN CHINA
5 35-36 3 3.5 21.5 35
5.5 36 3.5 4 22 35.5
6 36-37 4 4.5 22.5 36
6.5 37 4.5 5 23 36.5
7 37-38 5 5.5 23.5 37
7.5 38 5.5 6 24 37.5
8 38-39 6 6.5 24.5 38
8.5 39 6.5 7 25 38.5
9 39-40 7 7.5 25.5 39
9.5 40 7.5 8 26 39.5
10 40-41 8 8.5 26.5 40
11 41-42 9 9.5 27.5 41

Delivery

Orders are generally processed within 1–3 business days. Standard delivery to addresses in Canada usually takes approximately 5–15 business days after dispatch.

Tracking information will be sent by email when it becomes available. Delivery times are estimates and may be affected by carrier delays, customs, severe weather or circumstances outside our control.

  • Prices are displayed in Canadian dollars.
  • Applicable taxes and shipping charges are calculated at checkout.
  • Orders may be delivered in more than one shipment.
  • Please verify your shipping address before completing your order.

Returns & Refunds

Return requests must be submitted within 30 days of delivery. Vitamins, supplements and other health-related products must be unused, unopened, sealed and returned in their original packaging.

Opened or used products cannot be returned for health and safety reasons, unless the item arrived damaged, defective or incorrect. Damaged, defective or incorrect items should be reported within 48 hours of delivery.

Customers are responsible for return shipping costs for unwanted or change-of-mind returns. A restocking fee of up to 20% may apply where permitted. Original shipping charges are non-refundable unless the return results from an error on our part.

Refunds are issued to the original payment method after the returned item has been received and inspected. Please allow up to 7 business days for the refund to be processed.

Approved Return Address
Fullfillonus #1202
1128 Lexington Ave, Bldg 4 E
Rochester, New York 14606
United States
Please contact us before sending a return. Returns sent without prior authorization may be delayed, rejected or returned to the sender.

Need Help?

For questions about an order, delivery, return or refund, contact our customer support team and include your order number.

Email: info@cloverlight.net

Vitamin4CA.com is operated by Cloverlight LLC.

Ask a Question

Source Naturals Vitamin B-1 (Thiamine) 100 mg - 250 Tablets

Source Naturals Vitamin B-1 (Thiamine) 100 mg - 250 Tablets

$52.78

Who Might Benefit from Thiamine Supplementation?

While most individuals get enough thiamine from food, certain groups may have higher requirements. Those who consume alcohol regularly often experience reduced thiamine absorption. Older adults, people with gastrointestinal conditions such as Crohn’s disease or coeliac disease, and those on highly processed diets may also need more. Vegans and vegetarians can consider supplementation because some plant sources provide less absorbable thiamine than animal products. Always consult a healthcare professional before starting any new supplement regimen.

What is Thiamine?

Thiamine, also known as vitamin B1, is an essential water-soluble vitamin that plays a critical role in converting carbohydrates into energy. It is a key component of the Krebs cycle, where it helps generate ATP—the primary energy currency of your cells. Beyond energy metabolism, thiamine supports normal nervous system function by aiding in the production of neurotransmitters and maintaining myelin sheaths. Because the body cannot store thiamine for long, regular dietary intake or supplementation is necessary to maintain optimal levels.

Health Benefits of Thiamine

Thiamine supports overall wellness in several ways. It helps the body metabolise carbohydrates, some amino acids, and alcohol, making it important for maintaining energy levels throughout the day. Additionally, thiamine contributes to healthy nerve function and helps support normal heart function. By promoting efficient energy production, it may help reduce feelings of fatigue when combined with a balanced diet. These statements have not been evaluated by Health Canada. This product is a natural health product that may not be intended to diagnose, treat, , or prevent any disease.

How to Choose a Thiamine Supplement

Thiamine supplements come in several forms: thiamine HCl (the most common and well-studied), thiamine mononitrate (less hygroscopic, often used in tablets), and benfotiamine (a fat-soluble derivative that may offer enhanced absorption for nerve health). Source Naturals Vitamin B-1 uses thiamine HCl in a straightforward 100 mg tablet—a dose suitable for daily maintenance. The brand has been manufacturing supplements in the USA since 1982, adhering to current Good Manufacturing Practises (cGMPs). For those seeking a trusted, straightforward option, Source Naturals offers over 40 years of quality assurance.

Recommended Dosage and Usage

For general wellness, a typical dose ranges from 50 to 100 mg per day. Source Naturals suggests taking one 100 mg tablet daily, preferably with a meal. Some individuals may require higher doses under medical supervision. Always read the label and follow directions for use. As with any supplement, consult with a healthcare provider to determine the appropriate dosage for your specific needs.

Frequently Asked Questions

Can I take thiamine on an empty stomach? Yes, thiamine is water-soluble and generally well-tolerated, but taking it with food may reduce the risk of digestive discomfort.
Is it possible to get too much thiamine? Because thiamine is water-soluble, excess amounts are usually excreted in urine. However, very high doses may cause side effects like nausea or headaches. Stick to recommended dosages unless advised otherwise by a doctor.
Does this product contain common allergens? Source Naturals Vitamin B-1 is free from gluten, yeast, dairy, eggs, soy, and artificial preservatives. Always check the label for the most current allergen information.
How should I store these tablets? Keep them in a cool, dry place away from direct sunlight and out of reach of children.

Important Information

Things You Need to Know

Your payment and personal information are protected using industry-standard SSL encryption, and all payments are securely processed through Shopify-approved payment providers. Prices are displayed in Canadian dollars, and applicable taxes are calculated at checkout.

Orders are generally processed within 1–3 business days. Standard delivery to Canada usually takes 5–15 business days after dispatch. Delivery times are estimates and may be affected by carrier delays, customs processing, weather conditions or other circumstances outside our control. Tracking information will be provided when available.

Return requests must be submitted within 30 days of delivery. Vitamins, supplements and health products must be unused, unopened, sealed and returned in their original packaging. Opened products cannot be returned unless they were delivered damaged, defective or incorrect.

Customers are responsible for return shipping costs for unwanted or change-of-mind returns, and a restocking fee of up to 20% may apply. Damaged, defective or incorrect items must be reported within 48 hours of delivery and may qualify for a replacement or full refund.

Refunds are issued to the original payment method after the returned item has been received and inspected. Refund processing may take up to 7 business days. Before returning any product, please contact our customer support team for return authorization. Returns sent without prior approval may be delayed or rejected.

Approved returns must be sent to:

Return Address Fullfillonus #1202
1128 Lexington Ave, Bldg 4 E
Rochester, New York 14606
United States

Refused or unclaimed shipments may only be refunded after they are returned and inspected. Original shipping charges, return shipping costs, customs fees and carrier charges may be deducted from the refund where applicable.

Vitamin4CA.com is operated by Cloverlight LLC.

Our Blogs