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Linum crepitans
flaxseed (Linum usitatissimum)
Reported Doses
Safety/efficacy may not be established; reported doses may be derived from limited or potentially inadequate studies w/ variable regimens, multi-ingredient products, or where concentration of active ingredients may vary widely
Special Note
- [formulation clarification]
- Info: may incl. whole, ground or flaxseed extract; flaxseed products contain soluble fiber, lignans w/ phytoestrogens; not to be confused w/ flaxseed oil, a unique component w/ potentially different clinical properties
Effectiveness Ratings
- [see Herb & Supplement Effectiveness Rating Definitions table]
BPH
- [Insufficient Evidence]
- Dose: 300-600 mg extract PO qd
breast CA
- [Insufficient Evidence]
- Dose: 25 g PO qd
cardiovascular dz
- [Insufficient Evidence]
- Dose: 30 g PO qd
constipation
- [Possibly Effective]
- Dose: 3-25 g PO bid; Alt: 50 g/day PO in divided doses w/ meals
diabetes mellitus
- [Possibly Effective]
- Dose: 10-60 g PO qd; Alt: 600 mg extract PO tid
fatigue
- [Insufficient Evidence]
- Dose: 20 g/day PO in divided doses w/ meals
HTN
- [Possibly Effective]
- Dose: 10-60 g PO qd
hypercholesterolemia
- [Possibly Effective]
- Dose: 30-50 g PO qd
mastalgia
- [Possibly Effective]
- Dose: 25 g PO qd
menopausal sx
- [Insufficient Evidence]
- Dose: 40-90 g PO qd; Alt: 1000 mg extract PO qd
metabolic syndrome
- [Insufficient Evidence]
- Dose: 550 mg extract PO tid; Alt: 30 g PO qd
nonalcoholic fatty liver dz
- [Insufficient Evidence]
- Dose: 30 g PO qd
obesity
- [Possibly Effective]
- Dose: 30 g PO qd; Alt: 1.28-2.56 g mucilage/200 mL water PO bid w/ meals
osteoarthritis
- [Insufficient Evidence]
- Dose: apply poultice compress topically qd x30min
pneumonitis, radiation-induced
- [Insufficient Evidence]
- Dose: 40 g PO qd; Start: 1wk before XRT
polycystic ovary syndrome
- [Insufficient Evidence]
- Dose: 30 g PO qd
prostate CA
- [Insufficient Evidence]
- Dose: 30 g PO qd
rheumatoid arthritis
- [Insufficient Evidence]
- Dose: 30 g PO qd
SLE nephritis
- [Possibly Effective]
- Dose: 15-45 g/day PO divided qd-tid
ulcerative colitis
- [Insufficient Evidence]
- Dose: 30 g/day PO divided qd-bid
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