Last update
3/26/2026
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Overview
![Solgar Solgar B-Complex "100"](https://m.media-amazon.com/images/I/41OvoQlDt2L._SL500_.jpg "Solgar Solgar B-Complex "100"")
SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
USERS' SCORE
Good
Based on 1 Review
8.5
Supplement Facts
Serving Size: 1 Vegetable capsule
Amount Per Serving
%DV
Thiamin (vitamin B1) (as thiamin mononitrate)
100 mg
8,333%
Riboflavin (vitamin B2)
100 mg
7,692%
Niacin (vitamin B3) (as niacinamide)
100 mg
625%
Vitamin B6 (as pyridoxine HCl)
100 mg
5,882%
Folate
666 mcg DFE(400 mcg folic acid)
167%
Vitamin B12 (as cyanocobalamin)
100 mcg
4,167%
Biotin (as d-biotin)
100 mcg
333%
Pantothenic Acid (vitamin B5) (as d-calcium pantothenate)
100 mg
2,000%
Choline (as choline bitartrate)
20 mg
4%
Inositol
100 mg
**
Top Medical Research Studies
9
Zinc reduces diarrhea, colds in infants
We investigated the impact of daily multivitamin and zinc supplementation on the health of Tanzanian infants. In our randomized, double-blind study involving 2,400 infants, we compared the effects of these supplements against a placebo over 18 months.
Our findings revealed that while zinc significantly reduced occurrences of diarrhea and acute respiratory infections, multivitamins did not provide additional benefits. Ultimately, zinc supplementation starting at 6 weeks may be beneficial for reducing some common illnesses in infants, but multivitamins did not show any significant positive impact.
Our findings revealed that while zinc significantly reduced occurrences of diarrhea and acute respiratory infections, multivitamins did not provide additional benefits. Ultimately, zinc supplementation starting at 6 weeks may be beneficial for reducing some common illnesses in infants, but multivitamins did not show any significant positive impact.
Read More
Most Useful Reviews
9
Boosts energy
I have been taking Solgar's B-Complex "100" daily for several months. This supplement provides all the B vitamins in high potency, which supports my energy levels and nervous system health. I've noticed improved energy, especially during stressful times. While I take it with food to avoid stomach upset, the quality justifies the higher price. If you need a robust B-complex for health, I recommend this one.
Read More
Medical Researches
SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
- All Researches
9
Zinc reduces diarrhea, colds in infants
We investigated the impact of daily multivitamin and zinc supplementation on the health of Tanzanian infants. In our randomized, double-blind study involving 2,400 infants, we compared the effects of these supplements against a placebo over 18 months.
Our findings revealed that while zinc significantly reduced occurrences of diarrhea and acute respiratory infections, multivitamins did not provide additional benefits. Ultimately, zinc supplementation starting at 6 weeks may be beneficial for reducing some common illnesses in infants, but multivitamins did not show any significant positive impact.
Our findings revealed that while zinc significantly reduced occurrences of diarrhea and acute respiratory infections, multivitamins did not provide additional benefits. Ultimately, zinc supplementation starting at 6 weeks may be beneficial for reducing some common illnesses in infants, but multivitamins did not show any significant positive impact.
Read More
User Reviews
USERS' SCORE
Good
Based on 1 Review
8.5
- All Reviews
- Positive Reviews
- Negative Reviews
9
Boosts energy
I have been taking Solgar's B-Complex "100" daily for several months. This supplement provides all the B vitamins in high potency, which supports my energy levels and nervous system health. I've noticed improved energy, especially during stressful times. While I take it with food to avoid stomach upset, the quality justifies the higher price. If you need a robust B-complex for health, I recommend this one.
Read More
Frequently Asked Questions
9
Boosts energy
I have been taking Solgar's B-Complex "100" daily for several months. This supplement provides all the B vitamins in high potency, which supports my energy levels and nervous system health. I've noticed improved energy, especially during stressful times. While I take it with food to avoid stomach upset, the quality justifies the higher price. If you need a robust B-complex for health, I recommend this one.
9
Zinc reduces diarrhea, colds in infants
We investigated the impact of daily multivitamin and zinc supplementation on the health of Tanzanian infants. In our randomized, double-blind study involving 2,400 infants, we compared the effects of these supplements against a placebo over 18 months.
Our findings revealed that while zinc significantly reduced occurrences of diarrhea and acute respiratory infections, multivitamins did not provide additional benefits. Ultimately, zinc supplementation starting at 6 weeks may be beneficial for reducing some common illnesses in infants, but multivitamins did not show any significant positive impact.
Our findings revealed that while zinc significantly reduced occurrences of diarrhea and acute respiratory infections, multivitamins did not provide additional benefits. Ultimately, zinc supplementation starting at 6 weeks may be beneficial for reducing some common illnesses in infants, but multivitamins did not show any significant positive impact.
References
- McDonald CM, Manji KP, Kisenge R, Aboud S, Spiegelman D, et al. Daily Zinc but Not Multivitamin Supplementation Reduces Diarrhea and Upper Respiratory Infections in Tanzanian Infants: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial. J Nutr. 2015;145:2153. 10.3945/jn.115.212308
Data last updated:
