Flaxseed is a rich source of alpha-linolenic acid (ALA), a plant-based omega-3 fatty acid, as well as lignans and dietary fiber. Its primary healthspan relevance stems from its well-documented ability to improve cardiovascular risk factors, such as lowering blood pressure and LDL cholesterol, through anti-inflammatory and lipid-modulating mechanisms.
Verdict
A simple, evidence-based dietary addition for cardiovascular health.
HEALTHSPAN IMPACT
Moderate
RISK LEVEL
Very Low
EVIDENCE GRADE
A
MONTHLY COST
$5 - $15
Protocol
- Consume 1-2 tablespoons (10-20 grams) of ground flaxseed daily, mixed into food.
Flags
- Must be consumed ground to access nutrients; whole seeds are indigestible.
- High fiber content may cause gastrointestinal discomfort if intake is increased too rapidly.
- May have a mild blood-thinning effect; use with caution if on anticoagulant medication.
- Contains phytoestrogens (lignans), a consideration for those with hormone-sensitive conditions.