Are Chia Seeds Good for Fatty Liver? Chia, Flax and More

TL;DR

• Chia seeds and flaxseed are rich in fiber and ALA, a plant omega-3, and seeds are part of the Mediterranean-style diet liver guidelines recommend. Pumpkin, sunflower and hemp seeds add protein and unsaturated fat.
• A few small trials in fatty liver, using about 25–30 g a day of milled chia or ground flax alongside diet changes, reported better liver enzymes or liver fat. They were small and short, so seeds are a helpful addition, not a treatment.
• Seeds are calorie-dense, about 140–165 calories an ounce. A tablespoon or two a day of ground flax or soaked chia, with no added sugar, is plenty.

Yes, chia seeds and other seeds can be a good addition to a fatty liver diet. They bring fiber, unsaturated fat and a plant form of omega-3, and they can stand in for less helpful foods like sugary toppings or salty snacks for people with MASLD (formerly NAFLD).

What they aren’t is a cure. The research on seeds and fatty liver is early and small, and the omega-3 in seeds isn’t the same as the omega-3 in fish.

What’s in Chia, Flax and Other Seeds?

Seeds differ more than you might expect. Here’s how common ones compare, using USDA data:

Seed	Serving	Calories	Fat	Fiber	Protein	Omega-3 (ALA)
Chia seeds	1 oz (28 g)	138	8.7 g	9.8 g	4.7 g	5.1 g
Flaxseed	1 oz (28 g)	151	12.0 g	7.7 g	5.2 g	6.5 g
Flaxseed, ground	1 tbsp (7 g)	37	3.0 g	1.9 g	1.3 g	1.6 g
Hemp seeds, hulled	3 tbsp (30 g)	166	14.6 g	1.2 g	9.5 g	2.6 g
Pumpkin seed kernels, roasted, unsalted	1 oz (28 g)	163	13.9 g	1.8 g	8.5 g	under 0.1 g
Sunflower seed kernels, dry-roasted, unsalted	1 oz (28 g)	165	14.1 g	3.2 g	5.5 g	under 0.1 g
Walnuts (for comparison)	1 oz (28 g)	185	18.5 g	1.9 g	4.3 g	2.6 g

Source: USDA FoodData Central (SR Legacy).

The standouts:

• Chia and flax are the fiber and ALA seeds. An ounce of chia has nearly 10 g of fiber, about a third of the 28 g Daily Value. A single tablespoon of ground flax has 1.6 g of ALA, which matches the daily amount of ALA the NIH Office of Dietary Supplements recommends for men (1.6 g) and exceeds the amount for women (1.1 g).
• Hemp and pumpkin seeds are the protein seeds. Three tablespoons of hulled hemp seeds have 9.5 g of protein and some ALA; pumpkin seeds have 8.5 g of protein per ounce but almost no omega-3.
• Sunflower seeds sit in the middle, with some fiber and mostly unsaturated fat.
• All of them are calorie-dense. Most seeds run 140–165 calories an ounce, close to nuts.

Why Might Seeds Help a Fatty Liver?

Mainly because of what they add and what they replace. Liver guidelines don’t name chia or flax, but they describe the pattern seeds fit into:

• The AASLD’s 2023 guidance encourages, when possible, diets “with limited carbohydrates and saturated fat and enriched with high fiber and unsaturated fats (eg, Mediterranean diet).”
• The 2024 European guideline describes the Mediterranean diet it recommends as high in olive oil, vegetables, fruits, nuts and seeds, legumes, whole grains and fish.
• NIDDK suggests replacing saturated and trans fats with unsaturated fats, “especially omega-3 fatty acids,” which may lower the chance of heart disease in people with fatty liver.

Seeds deliver fiber and unsaturated fat in a small package. A tablespoon of ground flax in your oatmeal or chia in plain yogurt is an easy way to move a meal in that direction, especially if it replaces granola, sweetened toppings or a buttery spread. Our guide to the best foods for fatty liver covers where seeds sit next to other foods.

What Does Research Say About Chia, Flax and Fatty Liver?

The studies are encouraging but small:

• Flaxseed: In a 2016 pilot trial from Iran (Yari et al., International Journal of Food Sciences and Nutrition), 50 adults with NAFLD followed a lifestyle program for 12 weeks, and half also took 30 g a day of brown milled flaxseed. Weight, liver enzymes, insulin resistance, and liver fat and stiffness scores improved in both groups, but more in the flaxseed group. ALT, a liver enzyme, fell by about 11 U/L with flaxseed versus about 4 U/L without. The trial was open-label, meaning everyone knew which group they were in.
• More flaxseed trials: A few later trials of similar size, mostly from the same research group, have reported improvements in liver enzymes or liver scans with about 30 g a day, though not on every measure.
• Chia: In a 2020 study from Mexico (Medina-Urrutia et al., Lipids in Health and Disease), 25 adults with NAFLD added 25 g a day of milled chia to a diet with the same calories for eight weeks. Their blood ALA rose 75%, visceral fat fell 9% and body weight fell 1.4%, and fatty liver regressed on CT scans in 52% of them. There was no comparison group, so some of that change could have happened anyway.

Taken together, these are small, short studies, often without blinding or a control group, and they measured liver enzymes and scans rather than long-term outcomes. They suggest seeds may help as part of diet changes. They don’t show that seeds treat fatty liver on their own, and the changes with the strongest evidence are still weight loss and overall diet quality, covered in how to reverse fatty liver.

Is the Omega-3 in Seeds the Same as Fish Oil?

No. Chia, flax, hemp and walnuts provide ALA (alpha-linolenic acid). Fatty fish provide EPA and DHA, the long-chain omega-3s in fish oil. According to the NIH Office of Dietary Supplements, your body can convert some ALA into EPA and then DHA, “but only in very small amounts.”

So seeds don’t replace fish. If you eat fish, keep it on the menu; our guide to fish and fatty liver covers how often. And omega-3 supplements aren’t a liver treatment either: the AASLD’s guidance lists omega-3 fatty acids among options not found to have liver-specific benefits, while noting they can help manage high triglycerides. Ask your doctor before starting any supplement.

How to Eat Chia and Flax With Fatty Liver

• Keep the portion small. One to two tablespoons a day is plenty for most people. Seeds add calories quickly, so use them to replace something rather than adding them to everything.
• Grind your flax. Whole flaxseeds can pass through the gut undigested, so ground flax (flaxseed meal) is the usual recommendation. Stir it into oatmeal, yogurt, smoothies or batter.
• Soak your chia. Chia absorbs liquid and swells. In one reported case, a man who ate a tablespoon of dry chia seeds and then drank a glass of water needed an endoscopy because the swelling seeds blocked his esophagus. Mix chia into liquid or moist food first, especially if you’ve ever had trouble swallowing.
• Make chia pudding without added sugar. Stir 2 tablespoons of chia into ½ cup of unsweetened milk or soy milk, add cinnamon or vanilla, refrigerate until set, and top with berries. Skip the syrup and sweetened yogurt; our guide to sugar and fatty liver explains why that matters.
• Pick plain, unsalted seeds. Honey-roasted, candied or heavily salted seeds bring back the sugar and sodium you’re trying to cut.
• Start slow and drink fluids. NCCIH notes that higher doses of flaxseed can cause bloating, fullness and diarrhea. Build up over a couple of weeks.
• Check medications. NCCIH also notes a theoretical interaction between flaxseed and blood thinners (anticoagulant or antiplatelet drugs). If you take one, or you’re considering flaxseed oil or seed supplements, check with your doctor first.

If you’re working toward a daily fiber target, an app like Liverly tracks fiber alongside added sugar and saturated fat, so you can see what a spoonful of seeds adds.

The Bottom Line

Chia seeds, flaxseed and other seeds can be good for fatty liver in small amounts. They add fiber, unsaturated fat and ALA omega-3, and they fit the Mediterranean-style diet liver guidelines recommend. Small trials using about 25–30 g a day of chia or flax alongside diet changes have reported better liver enzymes and liver fat, but the evidence is early and limited.

Use a tablespoon or two a day, ground flax or soaked chia, with no added sugar, and let seeds replace less helpful foods rather than add extra calories. They work best as part of a calorie-aware fatty liver diet, not as a stand-alone fix, and they don’t replace fish as a source of EPA and DHA.

Sources

• Yari Z, et al. Flaxseed supplementation in non-alcoholic fatty liver disease: a pilot randomized, open labeled, controlled study. Int J Food Sci Nutr. 2016.
• Medina-Urrutia A, et al. Chia (Salvia hispanica)-supplemented diet ameliorates non-alcoholic fatty liver disease and its metabolic abnormalities in humans. Lipids Health Dis. 2020.
• Rinella ME, et al. AASLD Practice Guidance on the clinical assessment and management of nonalcoholic fatty liver disease. Hepatology. 2023.
• NCCIH: Flaxseed and Flaxseed Oil
• USDA FoodData Central: Seeds, chia seeds, dried (FDC ID 170554).

This article is for informational purposes only and is not medical advice. Talk to your doctor or hepatologist about your specific situation.