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B-1 100 mg

Source Naturals

4.8
(955 ratings)
Thiamin 100 mg
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Score 75.0

A very cost-effective and standard Thiamine supplement, providing 100mg per serving in a convenient tablet form for general B1 needs.

Quantity: 100 Tablet(s)Servings size: 1 Tablet(s) (100 servings)
Selected goals:
Other goals:
Energy
Brain Health
Cognitive Support
Cardiovascular Support
Testosterone Support

Score 75.0

A very cost-effective and standard Thiamine supplement, providing 100mg per serving in a convenient tablet form for general B1 needs.

Analysis

Source Naturals B-1 100 mg provides a straightforward and affordable way to supplement Thiamine. The 100mg dosage is a common therapeutic amount, suitable for boosting energy metabolism and supporting nerve function. The tablet form is convenient, and the inclusion of calcium is minimal and unlikely to impact absorption significantly. Nutritionists generally support B1 supplementation for energy and neurological health, especially in cases of dietary inadequacy or increased metabolic demand. Online reviews frequently praise its value and perceived effectiveness in alleviating fatigue.

Pros
  • Excellent price per serving, making it very affordable.
  • Standard 100mg dosage is suitable for many individuals.
  • Reputable brand (Source Naturals) with good overall product quality.
  • High number of positive reviews online.
Cons
  • Uses standard Thiamine (Vitamin B1) form, which has lower bioavailability compared to Benfotiamine or Coenzymated B1.
  • Tablet form may be less suitable for individuals with swallowing difficulties.
Warnings
  • High doses of B vitamins are generally safe as they are water-soluble, but individuals with specific health conditions or those on medication should consult a healthcare professional before starting supplementation to avoid potential interactions.
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$5.59($0.05 per serving)
iHerb
$ 5.59
Amazon
$ 8.17
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Effectiveness for goals

Dosage, timing & forms

Safety & interactions

Ingredients

IngredientAmount per serving
Thiamine (Vitamin B1) 100 mg
Calcium (Dibasic Calcium Phosphate) 35 mg
Adults 18–50
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Categories

As a standalone Thiamine product, it delivers a sufficient dose at a very competitive price. It serves well as a basic, reliable source of Vitamin B1 for those not requiring specialized forms or ultra-high dosages.

Goals

Thiamine is a coenzyme crucial for several key metabolic pathways, especially carbohydrate metabolism. Therefore, ensuring adequate B1 intake directly supports and 'boosts' the efficiency of these fundamental metabolic processes, aiding the body's ability to convert food into energy.
Thiamine is essential for carbohydrate metabolism, directly contributing to energy production. A 100mg dose is effective for supporting energy levels, particularly for individuals with higher metabolic demands or those experiencing mild fatigue related to B1 insufficiency. However, it's not a stimulant.
Thiamine plays a critical role in glucose metabolism in the brain and neurotransmitter synthesis, supporting overall brain function. The 100mg dose can contribute to maintaining healthy neurological processes. For specific cognitive issues, more bioavailable forms or higher doses might be considered by professionals.
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High Potency B-1 500 mg

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4.8
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From the same brand, this product delivers 500 mg of B1, offering five times the potency for a modest increase in cost per serving, representing a superior value proposition for higher doses.
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Benfotiamine 300 mg

Lake Avenue Nutrition
4.7
(1525 ratings)
While costing more per serving, this alternative offers a more bioavailable, fat-soluble form (Benfotiamine) at a good potency, presenting a strong value for those prioritizing absorption over raw Thiamine quantity.
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Benfotiamine 300 mg Maximum Strength

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4.8
(478 ratings)
Benfotiamine is a fat-soluble form of B1, which nutritionists and studies suggest may offer superior absorption and bioavailability, especially for neurological support, making it a 'better' option despite a higher cost.
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Benfotiamine 300 mg

Doctor's Best
4.6
(8890 ratings)
Similar to Swanson, this Doctor's Best Benfotiamine offers a highly bioavailable, fat-soluble form of B1 at a potent 300mg dose, often preferred for its enhanced efficacy.
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Super Potency Vitamin B 1 (Thiamin) 500 mg

Solgar
4.6
(4557 ratings)
Provides a significantly higher potency of 500 mg of Thiamine from a highly reputable brand (Solgar), making it a 'better' choice for those seeking a stronger dose of standard B1.
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B-1 100 mg

21st Century
4.6
(615 ratings)
Offers the same 100 mg potency of Thiamine at a lower cost per serving, making it a more economical choice for basic B1 supplementation.
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B-1 100 mg

NOW
4.8
(11915 ratings)
Provides an identical 100 mg dose of Thiamine at a slightly lower cost per serving, offering good value for a standard B1 supplement.
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B-Complex plus Vitamin C

21st Century
4.7
(24336 ratings)
While containing a lower specific B1 dose (15mg), this product is significantly cheaper per serving and offers a broader spectrum of B vitamins plus Vitamin C for general B-vitamin support.
90 Value

Vitamin B1 500 mg

Vitamatic
4.8
(291 ratings)
Offers a much higher potency (500mg) for a comparatively small increase in cost per serving, providing excellent value for a high-dose Thiamine supplement.
88 Value

High Potency B-1 500 mg

Source Naturals
4.8
(892 ratings)
From the same brand, this product delivers 500 mg of B1, offering five times the potency for a modest increase in cost per serving, representing a superior value proposition for higher doses.
85 Value

Benfotiamine 300 mg

Lake Avenue Nutrition
4.7
(1525 ratings)
While costing more per serving, this alternative offers a more bioavailable, fat-soluble form (Benfotiamine) at a good potency, presenting a strong value for those prioritizing absorption over raw Thiamine quantity.
90 Performance

Benfotiamine 300 mg Maximum Strength

Swanson
4.8
(478 ratings)
Benfotiamine is a fat-soluble form of B1, which nutritionists and studies suggest may offer superior absorption and bioavailability, especially for neurological support, making it a 'better' option despite a higher cost.
90 Performance

Benfotiamine 300 mg

Doctor's Best
4.6
(8890 ratings)
Similar to Swanson, this Doctor's Best Benfotiamine offers a highly bioavailable, fat-soluble form of B1 at a potent 300mg dose, often preferred for its enhanced efficacy.
88 Performance

Super Potency Vitamin B 1 (Thiamin) 500 mg

Solgar
4.6
(4557 ratings)
Provides a significantly higher potency of 500 mg of Thiamine from a highly reputable brand (Solgar), making it a 'better' choice for those seeking a stronger dose of standard B1.
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