Flaxseed is one of the most heart-friendly seeds you can add to your diet — and it contains zero cholesterol. Because cholesterol is only found in animal products, all plant-based foods — including flaxseed, ground flax, and flaxseed oil — are naturally cholesterol-free. This calculator turns any flaxseed serving into a complete nutrition snapshot: calories, fat, omega-3 ALA, fiber, protein, carbs, and of course its cholesterol contribution of exactly 0 mg.
Use the tool to plan low-cholesterol meals, check a serving against your daily cholesterol budget, or compare flaxseed with other foods. It works with tablespoons, teaspoons, grams, and ounces, and it adjusts automatically for ground or whole flaxseed versus flaxseed oil. Whether you are meal-prepping heart-healthy breakfasts or simply curious about plant-based nutrition, this tool gives you the numbers in seconds.
🥣 1. Enter Your Flaxseed Serving
🧾 2. Daily Cholesterol Budget (Optional)
Quick Start
Enter the amount of flaxseed you plan to eat, pick the unit (tablespoons, teaspoons, grams, or ounces), and choose whether you are using ground or whole flaxseed, or flaxseed oil. Hit Calculate and you will instantly see cholesterol, calories, fat, omega-3 ALA, fiber, protein, and carbohydrates for that exact serving.
Want to see how flaxseed fits into a heart-healthy eating plan? Turn on the optional Daily Cholesterol Budget and set your limit — the standard dietary guideline is 300 mg per day, or 200 mg if you have heart disease or high LDL cholesterol. The tool will show that this serving contributes 0 mg to your budget.
How It Works
The calculator uses standard nutrition reference values per 100 grams of raw flaxseed and flaxseed oil, then scales them by your serving weight:
- Grams per serving = amount × unit factor (1 tbsp = 7 g, 1 tsp ≈ 2.3 g, 1 oz = 28.35 g)
- Nutrient value = (nutrient per 100 g) × (grams ÷ 100)
Dietary cholesterol is found only in animal products, so the cholesterol value is always 0 mg regardless of the serving size. Note that flaxseed oil is 100% fat and contains no fiber, protein, or carbs, while whole flaxseed is a rich source of all three. Reference data comes from USDA FoodData Central.
Reference Data
Approximate values per 100 g (raw flaxseed and flaxseed oil):
| Nutrient | Ground/Whole Flaxseed | Flaxseed Oil |
|---|---|---|
| Cholesterol | 0 mg | 0 mg |
| Calories | 534 kcal | 884 kcal |
| Total fat | 42.2 g | 100 g |
| Omega-3 ALA | 22.8 g | 53.0 g |
| Fiber | 27.3 g | 0 g |
| Protein | 18.3 g | 0 g |
| Carbohydrates | 28.9 g | 0 g |
Worked Examples
Example 1 — 1 tablespoon of ground flaxseed. One tablespoon equals about 7 g. Scaling from 100 g: calories = 534 × 0.07 ≈ 37 kcal, omega-3 ALA = 22.8 × 0.07 ≈ 1.6 g, fiber = 27.3 × 0.07 ≈ 1.9 g. Cholesterol stays at 0 mg. That is a solid nutrient boost for a bowl of oatmeal or yogurt.
Example 2 — 1 tablespoon of flaxseed oil. One tablespoon of oil is about 13.6 g. Calories = 884 × 0.136 ≈ 120 kcal, all from fat. Omega-3 ALA = 53 × 0.136 ≈ 7.2 g — an excellent plant-based omega-3 source, but with zero fiber or protein. Use it in salad dressings rather than cooking, since heat can degrade the delicate ALA.
Example 3 — 28 g (about ¼ cup) of ground flaxseed. This serving gives roughly 149 kcal, 11.8 g fat, 6.4 g omega-3 ALA, 7.6 g fiber, and 5.1 g protein — all with 0 mg cholesterol. It is easy to hit your fiber goals when you add a few tablespoons to smoothies or baked goods.
Tips & Best Practices
- Buy ground or grind at home. Whole flaxseed passes through your digestive system largely undigested; grinding exposes the nutrients inside the seed.
- Store ground flaxseed in the fridge. The oils in flaxseed are healthy but delicate; an airtight container in the refrigerator keeps them fresh longer.
- Pair with water. Flaxseed is rich in soluble fiber, so drink plenty of fluids throughout the day to keep digestion comfortable.
- Flaxseed oil is not a cooking oil. It is best used cold — in smoothies, dressings, or drizzled over finished dishes — because high heat damages omega-3s.
- Keep perspective. A heart-healthy diet is about overall patterns. Replacing saturated fats and processed foods with plant foods like flaxseed is what moves the numbers.
Frequently Asked Questions
Does flaxseed really contain no cholesterol? Correct. Cholesterol is produced only in animals, so it exists exclusively in animal-derived foods such as meat, dairy, and eggs. All plant foods, including flaxseed, contain 0 mg of cholesterol.
Is flaxseed good for lowering cholesterol? Research suggests flaxseed — especially ground flaxseed — can help modestly reduce LDL (bad) cholesterol thanks to its soluble fiber, omega-3 ALA, and lignans. It contains no cholesterol itself, making it an excellent addition to a cholesterol-lowering diet.
How much flaxseed should I eat per day? Many studies use 1–2 tablespoons (7–14 g) of ground flaxseed daily. It is generally recommended to start with a smaller amount and increase gradually while drinking plenty of water.
What is the difference between flaxseed oil and ground flaxseed? Flaxseed oil is extracted and concentrated, so it is much higher in calories and omega-3 ALA but contains no fiber, protein, or carbohydrates. Ground flaxseed is the whole food and provides a broader range of nutrients.