All Supplements
Vitamin B1 (Thiamine) vs Vitex (Chasteberry)
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin B1 (Thiamine)
Vitex (Chasteberry)
Typical Dosage
1.1-1.2 mg daily for adults
400-500 mg daily of standardised extract (0.6% agnuside)
Best Form
Thiamine Hydrochloride
Standardised dry extract
Key Benefits
5
5
Evidence Rating
★★★★
★★★
Best Time
With meals to enhance absorption
Morning with food; consistent daily use recommended for 2-3 menstrual cycles before assessing effectiveness
Vitamin B1 (Thiamine) Benefits
✓Energy metabolism support
✓Nervous system health
✓Heart function
✓Cognitive performance
✓Muscle maintenance
Vitex (Chasteberry) Benefits
✓Reduces premenstrual syndrome (PMS) symptoms including bloating and mood changes
✓Supports regular menstrual cycles and hormonal balance
✓May alleviate breast tenderness and cyclical mastalgia
✓Potentially improves fertility outcomes in women with luteal phase defects
✓Helps regulate progesterone levels in the luteal phase
Can You Take Both Together?
In most cases, Vitamin B1 (Thiamine) and Vitex (Chasteberry) can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Vitamin B1 (Thiamine) if your primary goal is: energy metabolism support. Choose Vitex (Chasteberry) if your primary goal is: reduces premenstrual syndrome (pms) symptoms including bloating and mood changes. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.