382 kcal P 13.5g C 68.7g F 5.89g
🥜 Nut and Seed Products
Calories in Flaxseed, ground
Mixing ground flaxseed with water creates a mucilaginous gel that perfectly mimics an egg's binding properties in baking.
545 kcal
What makes flaxseed so powerful?
Flaxseed is the most abundant dietary source of lignans, specifically secoisolariciresinol diglucoside (SDG), containing up to 800 times more than other plant foods. These compounds are not active until they reach the colon, where gut bacteria ferment them into mammalian lignans called enterodiol and enterolactone. These metabolites can weakly bind to estrogen receptors, which is why flaxseed is heavily studied for its potential role in hormone-related conditions. Beyond hormones, flaxseed contains cyanogenic glycosides like linustatin. In their intact state, these compounds are harmless, but enzymatic breakdown can release hydrogen cyanide. While this sounds alarming, the concentrations in a typical serving are well below toxic thresholds, and the human body efficiently detoxifies trace amounts. Furthermore, grinding the seeds exposes these glycosides to moisture and heat during cooking, which volatilizes any potential hydrogen cyanide gas. This chemical complexity is also why ground flaxseed is often recommended as an egg replacer: when mixed with water, its soluble fiber forms a thick mucilage that structurally mimics the binding and moisture-retaining properties of eggs in baked goods.
Top Plant Omega-3 Source
It is one of the best plant-based sources of alpha-linolenic acid, an essential omega-3 fatty acid.
Vegan Egg Replacer
Mixing ground flax with water creates a mucilaginous gel that binds ingredients in baking.
Highest Lignan Content
It provides secoisolariciresinol diglucoside, which gut bacteria convert into compounds with weak estrogenic activity.
💡 When & how to use it
Store ground flaxseed in the refrigerator or freezer in an airtight container to prevent its delicate omega-3 fatty acids from oxidizing and turning rancid. To use it as a vegan egg substitute in baking, combine one tablespoon of ground flaxseed with three tablespoons of water and let it sit for five minutes until it gels. Because the human body struggles to absorb nutrients from whole flaxseeds, always buy them whole and grind them fresh in a coffee grinder, or purchase pre-ground varieties.
Calories by Serving Size
100g
545 kcal
P 18g C 34.4g F 37.3g
1 RACC (15g)
82 kcal
P 2.7g C 5.2g F 5.6g
200g
1090 kcal
P 36g C 68.8g F 74.6g
50g
273 kcal
P 9g C 17.2g F 18.7g
Full Nutrition Facts
Per 100g — daily values based on a 2,000 calorie diet
Nutrition Facts
Serving size: 100g
Calories 545
% Daily Value*
Total Fat 37.3g 48%
Saturated Fat 3.28g 16%
Sodium 36.7mg 2%
Total Carbohydrate 34.4g 13%
Dietary Fiber 23.1g 83%
Protein 18g 36%
Calcium 230mg 18%
Iron 5.78mg 32%
Potassium 793mg 17%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
How does Flaxseed fit your daily goals?
109 min
Walking to burn 545 kcal
27%
of 2,000 kcal daily goal
18g
protein (36% of daily 50g)
4
servings until 2,000 kcal
Log Flaxseed in CalRay — just snap a photo
CalRay's AI recognizes flaxseed and hundreds of thousands of other foods from a photo. No manual lookup needed.
Frequently Asked Questions
How many calories are in Flaxseed, ground?
Flaxseed, ground contains 545 calories per 100g. A standard serving of 1 RACC (15g) provides 82 calories. It is relatively calorie-dense, so portion control is important.
How much protein does Flaxseed, ground have?
Flaxseed, ground provides 18g of protein per 100g, which is 36% of the 50g daily recommended value. It is a good source of protein.
How many carbs are in Flaxseed, ground?
Flaxseed, ground contains 34.4g of carbohydrates per 100g . It also provides 23.1g of dietary fiber.
Is Flaxseed, ground good for weight loss?
Flaxseed, ground has 545 kcal per 100g, so portions need to be monitored on a weight-loss diet. Use CalRay to track your intake accurately. Its high protein content (18g/100g) helps with satiety. Its fiber content (23.1g/100g) also promotes fullness.
How do I track Flaxseed, ground calories accurately?
The easiest way to track flaxseed is with CalRay. Simply snap a photo of your meal and the AI will automatically identify the food and calculate calories and macros based on the estimated portion size — no manual lookup required. You can also search by name and adjust gram weight manually.
🍽️ Perfectly Pairs With Flaxseed
See all → 382 kcal 
61 kcal P 10.3g C 3.64g F 0.37g
370 kcal P 15.1g C 71.2g F 2.73g