Flaxseed has quietly found its way into many of our daily routines—blended into smoothies, sprinkled over granola, and kneaded into whole-grain bread. But beyond its role as a subtle health booster, new research shows that flaxseed may offer far more than just fiber and heart benefits
In the world of “superfoods,” few ingredients have sustained their reputation quite like flaxseed. A nutritional powerhouse, flaxseed offers health benefits beyond simple heart support—it’s packed with omega-3 fatty acids, especially alpha-linolenic acid (ALA), which has recently been linked to potential benefits for neurodegenerative diseases like ALS (amyotrophic lateral sclerosis). Groundbreaking new research now suggests that ALA, found abundantly in flaxseed, walnuts, and chia seeds, may slow the progression of ALS and help those with the disease live longer.
Flaxseed: The Nutrient-Dense Superfood
Let’s start with the basics. Flaxseed’s appeal comes from its unique nutritional profile:
- 70 calories per 2 tablespoons
- 5 grams of fat (mainly healthy fats)
- 4 grams of carbs (primarily fiber)
- 3 grams of fiber
According to registered dietitian Julia Zumpano to the Cleveland Clinic, this nutrient density means that flaxseed’s health benefits vastly outweigh its calorie count. The fiber it provides also slows digestion, promoting longer satiety, lowering cholesterol, and stabilizing blood sugar.
Omega-3s in Flaxseed: Nature’s Neuroprotective Agents
Flaxseed is an impressive source of omega-3s, particularly ALA, a fatty acid now under the microscope for its potential neuroprotective effects. The Harvard T.H. Chan School of Public Health recently published a study in Neurology that examined the role of ALA in slowing ALS, a debilitating neurodegenerative disease. Here’s what they found:
- Higher ALA Levels Correlate with Better Survival Rates
Among 449 ALS patients followed over 18 months, those with the highest blood levels of ALA had a 50% lower risk of death than those with the lowest levels. Additionally:- 33% of participants with low ALA levels died during the study.
- In contrast, only 19% of those with high ALA levels succumbed to the disease.
- Scoring the Severity of ALS Symptoms
ALS symptoms were scored on a scale from 0-40, with higher scores indicating less severe symptoms. Participants with elevated ALA levels maintained higher scores, showing slower disease progression. These findings suggest that ALA might delay physical decline in people with ALS, potentially improving quality of life. - Other Omega-3 and Omega-6 Benefits
In addition to ALA, the study found that eicosapentaenoic acid (EPA, an omega-3 in fatty fish) and linoleic acid (an omega-6 found in nuts and seeds) were also linked to a lower risk of death. But ALA, the star fatty acid, displayed the strongest effect.
Lignans: Another Secret Weapon in Flaxseed
Flaxseed is also rich in lignans, a unique polyphenol with antioxidant properties. Lignans, found at levels 75 to 800 times higher in flaxseed than in other plant foods, are associated with a reduced risk of heart disease, breast cancer, and osteoporosis. By combating oxidative stress, lignans may provide another layer of protection for the body, particularly for heart health and cellular stability.
How to Add ALA and Flaxseed to Your Diet for Maximum Impact
For those who want to enjoy the benefits of ALA, Zumpano recommends adding ground flaxseed to smoothies, salads, and baked goods. Whole flaxseed is difficult for the body to digest, so grinding is essential to access its full nutritional benefits. Flaxseed oil, while rich in ALA, lacks the fiber of ground flaxseed and has a shorter shelf life.
Storage Tip: Ground flaxseed can last up to a year in the fridge, while flaxseed oil has an even shorter life span, requiring careful attention to expiration dates.
The Road Ahead: Clinical Trials and ALA’s Potential for ALS Treatment
The Harvard study points to the need for further trials to confirm ALA’s neuroprotective benefits in ALS. But as Dr. Alberto Ascherio notes, obtaining funding for a natural nutrient like ALA is a challenge. Still, the strong correlation between ALA levels and slowed ALS progression gives hope that dietary changes could support ALS treatment.
Flaxseed isn’t just a trendy add-in; it’s a nutritional powerhouse. From cardiovascular benefits and blood sugar regulation to potentially extending the lives of those with ALS, the humble flaxseed offers more than meets the eye. Whether you’re looking for heart-healthy fiber or exploring new ways to support brain health, flaxseed and its high ALA content could be a small, easy addition to your diet with big rewards.
In the quest for better health, it’s easy to get caught up in the latest “superfood” trends, but it’s important to remember that no single ingredient holds all the answers. Flaxseed, with its remarkable profile of fiber, omega-3s, and antioxidants, certainly stands out as a valuable addition to a balanced diet, showing promising benefits that may extend even to those battling neurodegenerative diseases like ALS. Yet, like any food, flaxseed is best enjoyed as part of a varied diet, not as a miracle cure.
Curious for more? Dig deeper into the science of our references:
Bjornevik, K., Cortese, M., Furtado, J.D., Paganoni, S., Schwarzschild, M.A., Cudkowicz, M.E. and Ascherio, A., 2023. Association of polyunsaturated fatty acids and clinical progression in patients with ALS: post hoc analysis of the EMPOWER trial. Neurology,
Flaxseed: A Little Seed With Big Health Benefits. Cleveland Clinic.
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