Sustained Release B-100
NOW
Sustained Release B-100
4.7
★ ★ ★ ★ ★
(5490 ratings)
Vitamin B6 100 mg
Thiamin 100 mg
Vitamin B5 100 mg
PABA 10 mg
Niacin 100 mg
Choline 35 mg
Vitamin B12 100 mcg
Score 78.0
A high-potency, comprehensive B-complex with sustained-release benefits, but uses non-activated B vitamin forms and contains a very high dose of Niacin and B6.
Quantity: 100 Tablet(s)Servings size: 1 Tablet(s) (100 servings)
Selected goals:
Other goals:
Energy
Brain Health
Mood Support
General Health
Cognitive Support
leaderboard Score 78.0
A high-potency, comprehensive B-complex with sustained-release benefits, but uses non-activated B vitamin forms and contains a very high dose of Niacin and B6.
insights Analysis
This B-complex product provides a high dose (100mg) of most B vitamins, including B1, B2, B5, B6, and a very high 200mg of Niacin (B3). The sustained-release formulation is beneficial for mitigating the common 'niacin flush' and promoting steady nutrient absorption throughout the day. While it is comprehensive, including Choline, Inositol, and PABA, the reliance on synthetic forms like Cyanocobalamin and Pyridoxine Hydrochloride means these vitamins need conversion in the body, which can be inefficient for some individuals. The extremely high Niacin and B6 dosages should also be noted for long-term use.
- High potency with 100mg of most B vitamins per serving.
- Sustained-release formula helps prevent niacin flush and provides prolonged nutrient delivery.
- Comprehensive blend includes Choline, Inositol, and PABA.
- Excellent value for its potency and serving count from a reputable brand.
- Uses non-activated forms of Vitamin B6 (Pyridoxine HCl) and B12 (Cyanocobalamin), which may be less bioavailable for some individuals.
- The combined 200mg Niacin (B3) equivalent is a very high dose for general daily supplementation.
- The 100mg dose of Pyridoxine HCl (B6) may be excessive for long-term use in some sensitive individuals.
- High doses of Pyridoxine Hydrochloride (Vitamin B6) over extended periods have been associated with peripheral neuropathy in a subset of sensitive individuals; consultation with a healthcare professional is advised for prolonged use.
- The 200mg Niacin equivalent, while delivered in a sustained-release form, might still cause a mild flush for very sensitive individuals or be considered an excessive dose for daily maintenance without specific therapeutic guidance.
$18.09($0.18 per serving)
 Vitacost | $ 18.09 | |
 Daily Vita | $ 18.50 | |
 Amazon | $ 18.89 | |
 Pure Formulas | $ 19.04 | |
 iHerb | $ 19.59 |
bolt Effectiveness for goals
B vitamins act as coenzymes in the body's metabolic pathways, helping convert carbohydrates, fats, and proteins into usable energy. They are essential for cellular energy production and maintaining overall vitality throughout the day.
B vitamins like Thiamine (B1), B6, B12, and Folate are crucial for nerve signal transmission and neurotransmitter synthesis. They contribute to the healthy function of nerve cells and support overall neurological well-being.
Vitamins B6, B12, and Folate work synergistically, particularly in the metabolism of homocysteine, an amino acid. Their combined action is important for maintaining cardiovascular health and proper neurological function.
Choline and Inositol are often grouped with B vitamins due to their similar roles in metabolic processes. Choline is vital for neurotransmitter synthesis and liver function, while Inositol plays a role in cell signaling and nerve transmission. They contribute to cognitive and cellular health.
B vitamins are interdependent and often work together in the body's metabolic processes. A comprehensive B-complex ensures a balanced intake of these synergistic nutrients, supporting overall metabolic health and preventing imbalances that might arise from isolated high-dose supplementation.
schedule Dosage, timing & forms
Sustained-release formulations are designed to gradually release nutrients over an extended period. This mechanism helps maintain more consistent blood levels of water-soluble B vitamins throughout the day. It may also help minimize the potential for rapid nutrient excretion.
B-complex vitamins are often recommended to be taken in the morning or early afternoon. Many individuals prefer taking them with breakfast to aid absorption and provide energy support during the day. Taking them too close to bedtime might interfere with sleep for some people.
Yes, it is generally recommended to take B-complex vitamins with food. This can help minimize potential stomach upset that some individuals might experience. Food can also aid in the absorption of certain nutrients and enhance the overall utilization of the B vitamins.
B vitamins are water-soluble, meaning excess amounts are typically excreted by the body. Doses like 100mg for most B vitamins are common in 'high-potency' formulas and are generally considered safe for most healthy adults. However, individual needs and tolerance can vary, so consulting a healthcare professional is always advised for personalized guidance.
Niacin and Niacinamide are two forms of Vitamin B3 that serve similar metabolic functions, but they differ in their effects. Niacin can cause a temporary flushing sensation in some individuals, while Niacinamide typically does not. Both forms effectively contribute to various metabolic processes in the body.
health_and_safety Safety & interactions
Generally, B vitamins are water-soluble and any excess is typically excreted, which usually minimizes severe side effects. Some individuals might experience mild digestive upset or vivid yellow urine, especially due to riboflavin. High doses of certain B vitamins over extended periods may lead to specific side effects, so adherence to recommended dosages is important.
Long-term consumption of very high doses of pyridoxine, typically 200 mg or more daily, has been associated with peripheral neuropathy, characterized by nerve damage. The amount in this product is generally considered safe for most individuals when taken as directed. It is advisable to consult a healthcare professional if concerns about chronic high intake exist.
Niacinamide, a form of Vitamin B3 present in this supplement, is generally not associated with the 'niacin flush' that can occur with nicotinic acid, another form of niacin. The flush is a temporary redness, itching, or tingling sensation often experienced with immediate-release niacin. This form is typically well-tolerated without such effects.
Yes, high doses of folate can potentially mask the symptoms of a Vitamin B12 deficiency by improving the megaloblastic anemia often associated with it. However, folate does not correct the underlying neurological damage that can progress unchecked. It is important to ensure adequate B12 intake, especially if taking high folate doses, or consult a healthcare provider.
The bright yellow color of urine after taking a B-complex supplement is typically due to the presence of Riboflavin (Vitamin B2). Riboflavin has a natural yellow pigment, and any excess not utilized by the body is harmlessly excreted in the urine. This is a common and expected physiological response.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Thiamine | 100 mg |
Riboflavin | 100 mg |
Niacin | 100 mg |
Vitamin B6 | 100 mg |
Folate | 667 mcg DFE |
Vitamin B12 | 100 mcg |
Biotin | 100 mcg |
Pantothenic Acid | 100 mg |
Choline | 35 mg |
Inositol | 100 mg |
PABA | 10 mg |
Categories
Thiamin 90.0
Provides a robust 100mg of Thiamin (B1), an excellent dose for supporting carbohydrate metabolism and maintaining healthy nervous system function.
Riboflavin 90.0
Delivers a high 100mg dose of Riboflavin (B2), which is essential for energy production, cellular growth, and the metabolism of fats, drugs, and steroids.
Vitamin B5 90.0
The 100mg of Pantothenic Acid (B5) is a high and beneficial dose that plays a key role in energy metabolism and adrenal gland function, important for stress response.
Goals
Energy 85.0
The high potency of B vitamins is excellent for supporting energy production pathways. However, the use of non-activated forms for some B vitamins might slightly reduce the immediate cellular bioavailability compared to coenzymated versions.
Metabolism Boost 85.0
The high potency of B vitamins is excellent for supporting energy production pathways. However, the use of non-activated forms for some B vitamins might slightly reduce the immediate cellular bioavailability compared to coenzymated versions.
General Health 82.0
This B-100 complex provides a strong foundation of essential B vitamins for overall physiological function and well-being, though the non-activated forms for B6 and B12 could be a minor limitation for some users.
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