Posted on July 1st, 2022.

For centuries, cultures around the world have relied on traditional herbal medicine to meet their healthcare needs.

Despite medical and technological advancements of the modern era, the global demand for herbal remedies is on the rise. In fact, it’s estimated that this industry grosses about $60 billion annually.

Some natural remedies may be more affordable and accessible than conventional medicines, and many people prefer using them because they align with their personal health ideologies.

All the same, you may wonder whether herbal options are effective.

Here are 9 of the world’s most popular herbal medicines, including their main benefits, uses, and relevant safety information.

1. Echinacea

Echinacea, or coneflower, is a flowering plant and popular herbal remedy.

Originally from North America, it has long been used in Native American practices to treat a variety of ailments, including wounds, burns, toothaches, sore throat, and upset stomach (2Trusted Source).

Most parts of the plant, including the leaves, petals, and roots, can be used medicinally — though many people believe the roots have the strongest effect.

Echinacea is usually taken as a tea or supplement but can also be applied topically.

Today, it’s primarily used to treat or prevent the common cold, though the science behind this isn’t particularly strong.

One review in over 4,000 people found a potential 10–20% reduced risk of colds from taking echinacea, but there’s little to no evidence that it treats the cold after you have caught it.

Though insufficient data exists to evaluate the long-term effects of this herb, short-term use is generally considered safe. That said, side effects like nausea, stomach pain, and skin rash have occasionally been reported.

SUMMARY

Echinacea is a flowering plant frequently used to treat and prevent the common cold. Research is limited, but it may reduce your risk of catching a cold by up to 20%.

2. Ginseng

Ginseng is a medicinal plant whose roots are usually steeped to make a tea or dried to make a powder.

It’s frequently utilized in traditional Chinese medicine to reduce inflammation and boost immunity, brain function, and energy levels.

Several varieties exist, but the two most popular are the Asian and American types — Panax ginseng and Panax quinquefolius, respectively. American ginseng is thought to cultivate relaxation, while Asian ginseng is considered more stimulating.

Although ginseng has been used for centuries, modern research supporting its efficacy is lacking.

Several test-tube and animal studies suggest that its unique compounds, called ginsenosides, boast neuroprotective, anticancer, antidiabetes, and immune-supporting properties. Nonetheless, human research is needed.

Short-term use is considered relatively safe, but ginseng’s long-term safety remains unclear. Potential side effects include headaches, poor sleep, and digestive issues.

SUMMARY

Ginseng is an herbal remedy frequently utilized in traditional Chinese medicine to boost immunity, brain function, and energy levels. However, human studies are lacking.

3. Ginkgo biloba

Ginkgo biloba, also known simply as ginkgo, is an herbal medicine derived from the maidenhair tree.

Native to China, ginkgo has been used in traditional Chinese medicine for thousands of years and remains a top-selling herbal supplement today. It contains a variety of potent antioxidants that are thought to provide several benefits.

The seeds and leaves are traditionally used to make teas and tinctures, but most modern applications use leaf extract.

Some people also enjoy eating the raw fruit and toasted seeds. However, the seeds are mildly toxic and should only be eaten in small quantities, if at all.

Ginkgo is said to treat a wide range of ailments, including heart disease, dementia, mental difficulties, and sexual dysfunction. Yet, studies have not proven it effective for any of these conditions.

Although it’s well tolerated by most people, possible side effects include headache, heart palpitations, digestive issues, skin reactions, and an increased risk of bleeding.

SUMMARY

Gingko is traditionally used to treat numerous illnesses, including heart disease, dementia, and sexual dysfunction, but modern research has yet to prove its efficacy for any of these purposes.

4. Elderberry

Elderberry is an ancient herbal medicine typically made from the cooked fruit of the Sambucus nigra plant. It has long been used to relieve headaches, nerve pain, toothaches, colds, viral infections, and constipation.

Today, it’s primarily marketed as a treatment for symptoms associated with the flu and common cold.

Elderberry is available as a syrup or lozenge, although there’s no standard dosage. Some people prefer to make their own syrup or tea by cooking elderberries with other ingredients, such as honey and ginger.

Test-tube studies demonstrate that its plant compounds have antioxidant, antimicrobial, and antiviral properties, but human research is lacking.

While a few small human studies indicate that elderberry shortens the duration of flu infections, larger studies are needed to determine if it’s any more effective than conventional antiviral therapies.

Short-term use is considered safe, but the unripe or raw fruit is toxic and may cause symptoms like nausea, vomiting, and diarrhea.

SUMMARY

Elderberry is used to treat cold and flu symptoms, with some research suggesting that it may be at least mildly effective. While cooked elderberry is safe, it’s toxic if eaten raw or unripe.

5. St. John’s wort

St. John’s wort (SJW) is an herbal medicine derived from the flowering plant Hypericum perforatum. Its small, yellow flowers are commonly used to make teas, capsules, or extracts.

Its use can be traced back to ancient Greece, and SJW is still frequently prescribed by medical professionals in parts of Europe.

Historically, it was utilized to aid wound healing and alleviate insomnia, depression, and various kidney and lung diseases. Today, it’s largely prescribed to treat mild to moderate depression.

Many studies note that short-term use of SJW is as effective as some conventional antidepressants. However, there’s limited data on long-term safety or effectiveness for those with severe depression or suicidal thoughts.

SJW has relatively few side effects but may cause allergic reactions, dizziness, confusion, dry mouth, and increased light sensitivity.

It also interferes with numerous medications, including antidepressants, birth control, blood thinners, certain pain medications, and some types of cancer treatments.

Particular drug interactions could be fatal, so if you take any prescription medications, consult your healthcare provider prior to using SJW.

SUMMARY

St. John’s wort may treat mild to moderate depression. Yet, you may need to practice caution or avoid it because it interferes with several conventional medicines.

6. Turmeric

Turmeric (Curcuma longa) is an herb that belongs to the ginger family.

Used for thousands of years in cooking and medicine alike, it has recently garnered attention for its potent anti-inflammatory properties.

Curcumin is the major active compound in turmeric. It may treat a host of conditions, including chronic inflammation, pain, metabolic syndrome, and anxiety.

In particular, multiple studies reveal that supplemental doses of curcumin are as effective for alleviating arthritis pain as some common anti-inflammatory medications, such as ibuprofen.

Both turmeric and curcumin supplements are widely considered safe, but very high doses may lead to diarrhea, headache, or skin irritation.

You can also use fresh or dried turmeric in dishes like curries, although the amount you typically eat in food isn’t likely to have a significant medicinal effect.

SUMMARY

Turmeric is renowned for its anti-inflammatory benefits and may be especially effective for treating pain associated with arthritis.

7. Ginger

Ginger is a commonplace ingredient and herbal medicine. You can eat it fresh or dried, though its main medicinal forms are as a tea or capsule.

Much like turmeric, ginger is a rhizome, or stem that grows underground. It contains a variety of beneficial compounds and has long been used in traditional and folk practices to treat colds, nausea, migraines, and high blood pressure.

Its best-established modern use is for relieving nausea associated with pregnancy, chemotherapy, and medical operations.

Furthermore, test-tube and animal research reveals potential benefits for treating and preventing illnesses like heart disease and cancer, although the evidence is mixed.

Some small human studies propose that this root may reduce your risk of blood clot formation, although it hasn’t been proven any more effective than conventional therapies.

Ginger is very well tolerated. Negative side effects are rare, but large doses may cause a mild case of heartburn or diarrhea.

You can find ginger supplements at your local supermarket and online.

SUMMARY

Ginger contains several active plant compounds and may treat a variety of conditions, although it’s best known for relieving nausea.

8. Valerian

Sometimes referred to as “nature’s Valium,” valerian is a flowering plant whose roots are thought to induce tranquility and a sense of calm.

Valerian root may be dried and consumed in capsule form or steeped to make tea.

Its use can be traced back to ancient Greece and Rome, where it was taken to relieve restlessness, tremors, headaches, and heart palpitations. Today, it’s most often utilized to treat insomnia and anxiety.

Still, evidence supporting these uses isn’t particularly strong.

One review found valerian to be somewhat effective for inducing sleep, but many of the study results were based on subjective reports from participants.

Valerian is relatively safe, though it may cause mild side effects like headaches and digestive issues. You shouldn’t take it if you’re on any other sedatives due to the risk of compounding effects, such as excessive malaise and drowsiness.

SUMMARY

Valerian root is often used as a natural sleep and anti-anxiety aid, though evidence supporting its efficacy is weak.

9. Chamomile

Chamomile is a flowering plant that also happens to be one of the most popular herbal medicines in the world.

The flowers are most often used to make tea, but the leaves may also be dried and used for making tea, medicinal extracts, or topical compresses.

For thousands of years, chamomile has been used as a remedy for nausea, diarrhea, constipation, stomach pain, urinary tract infections, wounds, and upper respiratory infections (24Trusted Source).

This herb packs over 100 active compounds, many of which are thought to contribute to its numerous benefits.

Several test-tube and animal studies have demonstrated anti-inflammatory, antimicrobial, and antioxidant activity, though insufficient human research is available.

Yet, a few small human studies suggest that chamomile treats diarrhea, emotional disturbances as well as cramping associated with premenstrual syndrome (PMS), and pain and inflammation linked to osteoarthritis.

Chamomile is safe for most people but may cause an allergic reaction — especially if you’re allergic to similar plants, such as daisies, ragweed, or marigolds.

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