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The Connection Between Carbohydrates and Cholesterol Levels

Not all carbohydrates are equal — especially when it comes to their effect on cholesterol. Some…

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Not all carbohydrates are equal — especially when it comes to their effect on cholesterol. Some carbohydrates raise cholesterol, while others lower it. You find carbohydrates in breads, cereals, grains, milk, yogurt, fruits, vegetables, and foods that contain added sugars. All carbs are converted into glucose — which is also known as blood sugar — in the body and carbs can be used immediately for energy or stored for later use. Research suggests that the quantity and type of carbohydrates consumed can affect cholesterol.

 

Cholesterol and Triglycerides

Cholesterol is in the fats in your blood. High cholesterol is the buildup of these fats, which can lead to heart disease or stroke. Two types of cholesterol exist: LDL, which is also known as low-density lipoprotein and HDL, which is also known as high-density lipoprotein. LDL is the “bad” cholesterol, because it causes a buildup of plaque in the arteries. HDL is the “good” cholesterol, because it helps the body get rid of excess LDL in the blood by carrying it away from the organs to the liver, so that it can be removed. Triglycerides are another type of fat found in the blood, and high triglyceride levels also increase the risk for heart disease.

Research on Carbs and Cholesterol

Carbohydrate consumption from refined carbohydrates that are high in sugar and low in fiber such as cookies and cakes, is associated with lower levels of HDL and higher levels of LDL and triglycerides, which is associated with an increased risk for heart disease. Very high carbohydrate intakes of more than 60 percent of total calories — along with excess sugar consumption — are associated with an increase in triglycerides, according to the National Heart, Lung and Blood Institute. A 2005 OmniHeart study by Johns Hopkins Medical Institutions compared three diets that emphasized either protein, monounsaturated fat or carbohydrate and found that the protein and monounsaturated fat diets were more effective in reducing the risk factors for heart disease than the high-carbohydrate diet.

 

Breaking Down the Carbohydrates

A food’s glycemic index — which is how fast it increases blood sugar — may affect your cholesterol. The glycemic index of a food depends upon a handful of factors, including the type of starch, fiber content and fat content of that food. For example, a refined or processed food such as white bread, has a higher glycemic index than whole-wheat bread. Additionally, ripe foods tend to have more sugar, while lower fat foods digest faster and cause blood sugar to rise more rapidly, causing them to have a higher glycemic index. In general, whole grains, beans, fruits and vegetables are not only healthy but also have a low glycemic index. Women who eat a high-glycemic index diet are more than twice as likely to develop heart disease, according to a 2010 study published in the “Archives of Internal Medicine.”

 

Soluble Fiber Plays a Role

Although refined carbohydrates may raise your cholesterol, healthier carbohydrates with whole grains and fiber can help lower your cholesterol. The beneficial effects of a low-glycemic diet that contains whole grains may because of its high-fiber content. In particular, soluble fiber has been shown to block cholesterol and fats from absorption, thus lowering the LDL cholesterol. Foods high in soluble fiber include kidney beans, oatmeal, barley, pears, apples and prunes. Aim for five to 10 grams of soluble fiber each day to lower your total cholesterol and your LDL cholesterol. For example, it is possible to meet this goal if you have half a cup of oatmeal for breakfast, half a cup of kidney beans for lunch, one apple for a snack and one medium artichoke with dinner.

 

Conclusion

To improve your cholesterol, eat only a moderate amount of carbohydrates. Everyone has individual requirements, but it can be helpful to have less than 60 percent of your calories come from carbohydrates. Choose carbohydrates that have whole grains, are high in fiber and low in sugar, and include fruits and vegetables. Try replacing unhealthy, high-glycemic carbohydrates — such as chips or cookies — with either whole grains or healthy fats, such as nuts or guacamole.

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7 Everyday Habits That Help You Stay Sun Safe

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Sun safety is more than just remembering sunscreen during a beach day—it’s a daily commitment to protecting your skin from harmful UV rays and reducing the risk of skin damage or long-term health concerns. Whether it’s a sunny summer day or overcast skies, the sun’s rays can find ways to impact your skin. Integrate these seven simple habits into your routine to stay sun safe every day.


1. Wear Sunscreen Daily

Sunscreen is your first and most essential line of defense against UV rays. Apply a broad-spectrum sunscreen with an SPF of 30 or higher on all exposed areas of skin—even during winter or cloudy weather. Don’t forget often-overlooked areas such as your ears, neck, and tops of your feet. Reapply every two hours or after sweating or swimming to ensure consistent protection.


2. Dress for Sun Protection

Clothing can do more than make a fashion statement—it can be your sun-protection ally. Opt for long-sleeved tops, wide-brimmed hats, and sunglasses with UV protection. Consider clothing with a UPF (Ultraviolet Protection Factor) for an added layer of defense. Tightly woven fabrics offer better protection than loosely woven ones.


3. Utilize Shade

Whenever possible, seek shade to minimize direct sun exposure, especially during peak hours. The sun is usually strongest between 10 a.m. and 4 p.m., so finding shade during this period can significantly reduce your UV exposure. Make use of outdoor umbrellas, trees, or canopies if you’re spending time outside.


4. Pay Attention to Reflected Sunlight

Many people underestimate the power of reflected UV rays. Surfaces like water, sand, concrete, and snow can bounce the rays back onto your skin, intensifying exposure. If spending time around reflective surfaces, double your sun safety measures with sunscreen and protective clothing—even in shaded areas.


5. Avoid Indoor Tanning

Indoor tanning is a leading cause of unnecessary UV exposure. It increases skin cancer risks and accelerates skin aging. Opt for self-tanning lotions or sprays as safer alternatives to achieve that sun-kissed glow without compromising your skin’s health.


6. Use Lip Balm with SPF

Your lips are often forgotten but are equally vulnerable to UV damage. Always carry a lip balm with a minimum SPF of 15 and reapply throughout the day, especially after eating or drinking. Protecting your lips can help avoid painful burns and reduce the risk of skin cancers in this delicate area.


7. Stay Hydrated

While hydration doesn’t directly protect against UV rays, it plays a major role in maintaining your skin’s health and resilience. Sun exposure can dehydrate your skin, making hydration a vital part of your sun-care routine. Drink plenty of water throughout the day to keep your skin nourished from within.


Sun Care is a Lifestyle, Not a Seasonal Choice

Being sun safe isn’t just for hot, sunny days—it’s a year-round commitment. By adopting these seven habits, you’ll be protecting your skin from damage and promoting long-term health. Make sun care part of your daily routine, and enjoy the outdoors with confidence, knowing you’re keeping your skin safe and healthy.

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5 Preventive Maintenance Practices to Extend Chiller Lifespan

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Chillers are essential components in many industries, from commercial HVAC systems to industrial applications, ensuring efficient cooling and temperature regulation. However, as with any complex machinery, chillers require regular care to operate effectively and avoid costly breakdowns or replacements. Implementing preventive maintenance practices can significantly extend the lifespan of your chiller, optimizing performance while reducing downtime. Here are five key strategies to keep your chiller in prime condition.


1. Schedule Regular Inspections and Maintenance

A chiller’s longevity heavily depends on consistent and thorough inspections. Regular check-ups allow you to identify and address minor issues before they escalate, preventing major failures. Key components such as compressors, evaporators, and condensers should be examined routinely for signs of wear or damage.

Partnering with qualified technicians who understand the intricacies of chiller operations ensures maintenance is carried out effectively. Depending on operational intensity, biannual or quarterly inspections are recommended to optimize system performance.


2. Keep Condenser and Evaporator Coils Clean

Dirty coils are one of the most common culprits of reduced chiller efficiency. Dust, debris, and buildup on condenser or evaporator coils can impede heat transfer, forcing the system to work harder and consume more energy. Over time, this strain can lead to premature wear and tear.

Regular cleaning of the coils is essential for maintaining optimal performance. Whether your chiller uses water- or air-cooled systems, ensure that cleaning schedules align with manufacturer recommendations. For heavily soiled coils, professional cleaning services may be necessary to restore efficiency.


3. Monitor Operating Parameters

Chillers rely on precise operating conditions. Tracking critical parameters like refrigerant levels, pressure, flow rates, and temperature can help ensure the system is functioning within its intended range. Discrepancies in these metrics could indicate potential issues, such as leaks, blockages, or system imbalances.

Advanced monitoring tools or automated controls can further enhance management efficiency, providing real-time alerts and ensuring immediate action when abnormalities are detected. This proactive approach minimizes the chances of sudden equipment failure while boosting energy savings.


4. Check and Replace Filters Regularly

Filters play a vital role in protecting a chiller’s internal components by keeping contaminants out of the system. However, clogged or dirty filters can lead to reduced airflow, making it harder for the chiller to cool effectively. Over time, this increased load can degrade the system’s efficiency and shorten its lifespan.

Inspect and replace filters regularly to avoid these issues. The frequency of replacement will depend on the environment in which the chiller operates and its usage intensity. Opt for high-quality filters designed for your specific application to ensure maximum protection and performance.


5. Ensure Proper Refrigerant Levels

Refrigerant is the lifeblood of a chiller. Insufficient refrigerant levels can reduce cooling capacity and cause internal components, like compressors, to overwork and deteriorate. On the other hand, excessive refrigerant can damage system components and impact efficiency.

Routine refrigerant checks should be an integral part of your maintenance schedule. Repair any leaks immediately to prevent refrigerant loss, and always refer to the manufacturer’s guidelines for appropriate refrigerant quantities. Engaging professional assistance for refrigerant handling ensures safety and compliance with environmental regulations.


The Bottom Line

Preventive maintenance is the cornerstone of extending the lifespan of your chiller while ensuring its efficiency and reliability. By following these five practices—regular inspections, keeping coils clean, monitoring operating parameters, replacing filters, and maintaining proper refrigerant levels—you can maximize the value of your investment and minimize operational costs.

Proactive care not only reduces the likelihood of unplanned downtime but also contributes to a more sustainable and energy-efficient operation. Take the time to implement these strategies, and your chiller system will reward you with years of dependable service.

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Foods Cooked in a Traditional Umu: A Journey into Polynesian Culinary Heritage

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The umu, an iconic symbol of Polynesian culture, is more than just an outdoor kitchen; it is a communal experience that brings people together around the preparation and cooking of food. Derived from traditions that are centuries old, the umu, or earth oven, continues to be a vital part of celebrations and gatherings, offering a taste of authentic Polynesian cuisine.

In this guide, we’ll explore what foods are typically cooked in an umu and learn more about this traditional cooking method that connects people with history and culture.


What Is an Umu?

An umu is a traditional Polynesian cooking method that uses heated stones to cook food. A pit dug into the ground forms the base of the oven, which is then filled with stones heated over an open fire. Once the stones reach the desired temperature, food is carefully layered into the pit, covered with leaves or an insulating material, and left to cook slowly.

This method not only locks in flavors but also preserves the natural taste and juices of the ingredients, making the umu a unique and flavorful alternative to modern cooking appliances.


Foods Commonly Cooked in an Umu

The umu is known for its versatility—it can prepare a wide array of dishes, from meats and seafood to root vegetables and desserts. Below are some of the most cherished foods cooked in an umu.

1. Meat (Pork, Lamb, and Chicken): The Star of the Umu

One of the highlights of an umu feast is the succulent, tender meat that emerges from the oven. Pork is often the centerpiece and is typically prepared whole, coated in salt, and sometimes stuffed with herbs to enhance its flavor.

Lamb and chicken are also popular choices, with the slow-cooking process infusing them with a smoky, savory aroma that leaves diners craving more. Wrapped in banana leaves or palm fronds to retain moisture, these meats emerge from the umu perfectly tender and full of flavor.

2. Seafood: A Taste of the Pacific

Given Polynesia’s close relationship with the ocean, it’s no surprise that seafood is often a mainstay in umu cooking. Fish, crabs, and shellfish are often cooked whole, enveloped in leaves to protect their delicate flesh from direct heat. The result is seafood that is tender, flavorful, and infused with the earthiness of the umu stones.

3. Traditional Root Vegetables: Taro and Sweet Potatoes

No umu feast is complete without root vegetables. Taro and sweet potatoes are both traditional staples that complement the rich flavors of the meat and seafood. They’re often wrapped in leaves and placed among the hot stones, where they cook to a soft, melt-in-your-mouth consistency that perfectly pairs with the other components of the meal.

4. Palusami: A Coconut-Cream Dish

Palusami is a beloved Polynesian dish made from taro leaves filled with a creamy mixture of coconut milk, onions, and sometimes meat. Wrapped and cooked in the umu, the dish gains a smoky flavor from the heated stones, making it a rich and hearty addition to the spread.

5. Desserts and Sweets

Even desserts find their way into the umu. Coconut-based puddings or bananas cooked with coconut cream offer a sweet conclusion to the meal. These desserts absorb the earthy flavors of the umu, creating a unique balance of sweetness and subtle smokiness.


The Social and Cultural Role of the Umu

Cooking in an umu is more than just a method of preparing food; it is a cultural and social event. The preparation of the umu is a collective effort, with family members and friends gathering to lay out the stones, wrap the food, and carefully arrange it in layers.

During festivals, weddings, or other celebrations, the umu becomes a central part of the experience, embodying the themes of sharing, community, and tradition. It is not only about eating but also about honoring heritage and spending time with loved ones.


Why the Outdoor Umu Kitchen Still Matters Today

Even in today’s modern world of kitchen appliances and convenience, the outdoor umu kitchen holds a special place in Polynesian communities. Its significance lies in retaining the culinary traditions and flavors that ovens and stoves struggle to replicate.


Whether you’ve experienced an umu feast firsthand or are merely curious to learn about this ancient cooking tradition, it’s undeniable that the umu embodies the spirit of togetherness and authenticity. More than just an outdoor kitchen, it is a celebration of heritage, flavor, and community—a tradition that warms both the heart and the belly.

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