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What foods have plant sterols and stanols?

3 min read

According to Heart UK, consuming 1.5 to 3 grams of plant sterols or stanols daily can reduce your blood cholesterol by up to 12.5% within three weeks when consumed as part of a healthy diet. This makes understanding what foods have plant sterols and stanols a key step toward managing heart health effectively.

Quick Summary

Many plant-based foods contain natural sterols and stanols, although typically in small amounts. For a therapeutic effect, it is more practical to consume fortified foods like spreads, yogurts, or juices designed to deliver an effective dose.

Key Points

  • Natural Sources: Small amounts of plant sterols and stanols are found in vegetable oils, nuts, seeds, whole grains, fruits, and vegetables.

  • Fortified Foods: For a significant cholesterol-lowering effect, consume fortified products like spreads, yogurts, and juices that contain added sterols or stanols.

  • Daily Intake: Aim for a daily intake of 1.5 to 3 grams of sterols or stanols from fortified products to achieve a therapeutic effect on cholesterol levels.

  • Mechanism: These plant compounds block the absorption of dietary cholesterol in the intestines, thereby reducing blood cholesterol.

  • Effective with Medication: Fortified foods containing plant sterols and stanols can be safely combined with statin therapy for an additive cholesterol-lowering effect.

  • Consistency is Key: The cholesterol-lowering benefits of fortified foods only last as long as you continue to consume them daily.

  • Absorption: To maximize their effectiveness, consume foods containing plant sterols and stanols with meals, not on an empty stomach.

In This Article

The Science Behind Plant Sterols and Stanols

Plant sterols and stanols are naturally occurring compounds found in plants that have a similar chemical structure to cholesterol. When you eat them, they compete with cholesterol for absorption in your intestines. Because these plant compounds are absorbed instead, the amount of dietary cholesterol that enters your bloodstream is reduced. This mechanism helps to lower your total and LDL ("bad") cholesterol levels. It's important to note that this process does not affect your HDL ("good") cholesterol.

Natural Dietary Sources of Plant Sterols and Stanols

While the amounts in natural foods are small, a diet rich in these items contributes to overall heart health. Regular intake is beneficial, but likely insufficient on its own for those with high cholesterol who need to achieve significant lowering.

Vegetable Oils

Certain vegetable oils contain a higher concentration of plant sterols compared to other natural sources. Incorporating these into your cooking can help increase your intake:

  • Corn oil
  • Soybean oil
  • Canola oil
  • Sunflower oil
  • Olive oil

Nuts and Seeds

These are excellent sources of healthy fats, fiber, and plant sterols and stanols. A handful of nuts or a sprinkle of seeds can provide a nutritional boost:

  • Almonds
  • Pistachios
  • Walnuts
  • Pecans
  • Sunflower seeds
  • Sesame seeds
  • Flaxseed
  • Chia seeds

Whole Grains and Legumes

Many whole grains and legumes contain a small, but valuable, amount of plant sterols and stanols.

  • Wheat germ and wheat bran
  • Rice bran and brown rice
  • Oat bran and oatmeal
  • Legumes such as dried peas, lentils, and beans

Fruits and Vegetables

Fruits and vegetables contribute to overall heart health and contain some plant sterols, though often in smaller quantities than other sources.

  • Broccoli
  • Brussels sprouts
  • Avocado
  • Apples
  • Tomatoes

Fortified Foods for Targeted Cholesterol Reduction

Since the natural amounts in foods are often too low to significantly lower cholesterol, many food products are fortified with plant sterols and stanols to provide a therapeutic dose of 1.5 to 3 grams per day. These products offer a convenient way to boost your intake.

Examples of fortified foods include:

  • Spreads and Margarines: Many brands offer spreads formulated with plant sterols or stanols.
  • Yogurts and Yogurt Drinks: Special mini yogurt drinks are available that provide the full daily recommended amount in one serving.
  • Milk and Juices: Some milk and orange juice products are fortified to help meet daily targets.
  • Granola and Cereal Bars: Check the nutrition labels on certain bars, as some may be fortified.

Comparison Table: Natural vs. Fortified Sources of Plant Sterols and Stanols

Feature Natural Food Sources Fortified Food Products
Typical Daily Intake 200-400 mg (sub-therapeutic) 1.5-3.0 g (therapeutic)
Ease of Intake Requires consuming large, varied quantities of plant foods Can meet daily requirement with 1-3 specific servings
Primary Purpose Part of a healthy, balanced diet; contributes minor intake Designed specifically to provide an effective cholesterol-lowering dose
Effective For High Cholesterol? Unlikely to have a significant impact alone Clinically proven to reduce LDL cholesterol significantly
Required Consistency Recommended as a long-term dietary habit Must be consumed daily to maintain cholesterol-lowering effect

Integrating Plant Sterols and Stanols into Your Diet

To make the most of plant sterols and stanols, consider a balanced approach:

  • Start with Natural Foods: Increase your consumption of vegetable oils, nuts, seeds, whole grains, and legumes to boost your baseline intake and improve overall diet quality.
  • Target with Fortified Products: If you have high cholesterol, incorporating fortified products is the most reliable way to achieve the recommended daily intake for a therapeutic effect. Since absorption is better with a meal, have fortified products with your largest meal of the day.
  • Read Labels Carefully: When choosing fortified products, check the nutrition label to confirm they contain plant sterols or stanols and to ensure you consume the correct serving size to meet your daily target.

For more detailed information on phytosterols and their cholesterol-lowering effects, the Cleveland Clinic offers an in-depth guide on their website.

Conclusion

For those looking to manage cholesterol, foods with plant sterols and stanols offer a powerful dietary tool. While a wide variety of natural plant foods contribute small amounts, relying on fortified foods provides the necessary daily intake for a clinically significant effect. By combining a diet rich in natural plant sources with the consistent use of fortified products, individuals can take a proactive step towards reducing their LDL cholesterol and improving their heart health. Always consult with a healthcare provider or a registered dietitian before making significant dietary changes, especially if you are on cholesterol-lowering medication.

Frequently Asked Questions

Plant sterols and stanols have a structure similar to cholesterol. They compete with cholesterol for absorption in the intestines, which means less cholesterol is absorbed into the bloodstream. This leads to a reduction in total and LDL cholesterol levels.

Naturally occurring sources, such as nuts and seeds, contain small amounts of sterols and stanols that are generally not enough to significantly lower cholesterol on their own. Fortified foods, like spreads and yogurt drinks, have a higher, controlled dose added to them for a therapeutic cholesterol-lowering effect.

Yes, it is generally safe to consume foods with added plant sterols and stanols while taking statins. They work through a different mechanism and can provide an additive cholesterol-lowering effect.

For optimal cholesterol-lowering benefits, most health organizations recommend a daily intake of 1.5 to 3 grams of plant sterols or stanols, typically achieved through fortified foods.

Fortified foods include certain margarines and spreads, mini yogurt drinks, some milks and juices, and a limited number of granola or cereal bars.

Plant sterols are generally considered safe for most people. There is some evidence they might slightly interfere with the absorption of fat-soluble vitamins (A, D, E, K), but this can be offset by eating plenty of fruits and vegetables.

People with the rare genetic condition sitosterolemia should avoid consuming fortified foods with plant sterols. Additionally, they are not recommended for pregnant or breastfeeding women or children without a doctor's supervision.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.