🪴Jamu

Bitter Leaf (Sambung Nyawa)

Gynura procumbens

About Bitter Leaf (Sambung Nyawa)

Bitter Leaf (Sambung Nyawa) (Gynura procumbens) is a herb used in the Jamu tradition to help with High Blood Pressure, Diabetes, Inflammation, and Liver Support. The leaves are the part traditionally used, taken internally.

Botanical background

Gynura procumbens (Sabuñgai), sometimes called "longevity spinach," is an edible vine found in China, Southeast Asia, and Africa. Leaves are ovate-elliptic or lanceolate, 3.5 to 8 centimeters long, and 0.8 to 3.5 centimeters wide. Flowering heads are panicled, narrow, yellow, and 1 to 1.5 centimeters long. The plant grows wild but is also cultivated as a vegetable or medicinal plant. Its young leaves are used for cooking, such as with meat and prawns in a vegetable...

Source: Wikipedia, via iNaturalist

Parts used

Leaves · internal
🍵

Tea / Infusion

1–3 cups daily
  • Steep 1–2 tsp of dried Bitter Leaf (Sambung Nyawa) in freshly boiled water for 5–10 minutes.
  • Cover while steeping.
  • Strain and drink.
💧

Tincture

20–40 drops in water, 2–3× daily
  • Pack dried Bitter Leaf (Sambung Nyawa) into a jar and cover with 40–60% alcohol.
  • Seal and steep for 4–6 weeks, shaking daily.
  • Strain and store in a dark dropper bottle.
💊

Powder / Capsule

500 mg – 1 g, 1–3× daily
  • Grind dried Bitter Leaf (Sambung Nyawa) into a fine powder.
  • Fill size 00 capsules or stir into smoothies or honey.

Pregnancy, Breastfeeding & Children

No herb-specific pregnancy/child safety research is documented for Bitter Leaf (Sambung Nyawa) in our references — the guidance below is based on its general effect category, not research on Bitter Leaf (Sambung Nyawa) itself. Always confirm with a midwife, doctor, or pediatrician.

Pregnancy

Use Caution

This herb is processed through the liver, which is already working harder during pregnancy — generally used cautiously and not at high/concentrated doses without guidance. This is a general, mechanism-based caution, not herb-specific research.

Breastfeeding

Use Caution

Liver-processed compounds can appear in breast milk — generally used cautiously and in moderation.

Children

Use Caution

A child's liver is still developing its full drug/herb-processing capacity — these herbs are generally used cautiously and at reduced, age-appropriate doses.

Contraindications

  • Pre-surgery — discontinue at least 2 weeks prior (potential antiplatelet effect)
  • Active liver disease — monitor liver enzymes with long-term use
  • Diabetes medications — may enhance hypoglycaemic effect; monitor blood glucose closely

Warnings

⛔ Diabetes Medications

May enhance the blood sugar–lowering effect of insulin or oral diabetes medications. Monitor blood glucose closely.

⛔ Heart & Blood Pressure Medications

May interact with antihypertensive drugs, blood thinners, or cardiac medications. Do not combine without medical guidance.

⚠️ Liver Health

Some herbs used for liver conditions can be hepatotoxic at high doses. Have liver function monitored if using long-term.

⚠️ Allergic Reactions

Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.

⚠️ Not Medical Advice

This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.

Drug & herb interactions

May affect blood pressure

Watch for: Antihypertensive medications (ACE inhibitors, beta-blockers, calcium channel blockers, diuretics)

Combined use can push blood pressure too high or too low — monitor readings if you take blood pressure medication.

May affect blood sugar

Watch for: Insulin and oral diabetes medications (metformin, sulfonylureas)

Additive blood-sugar-lowering effects can risk hypoglycemia — monitor glucose closely.

Processed by the liver

Watch for: Any medication that is also processed by liver enzymes (ask your pharmacist — this includes many common prescriptions)

Can alter how quickly the body clears certain medications, raising or lowering their effective dose.

Where to find in nature

Native region

Indonesia, Malaysia, Philippines

Climate

Tropical equatorial

Habitat

Tropical rainforests, village herb gardens, and traditional farm plots across the Indonesian archipelago

🌿 To see Bitter Leaf (Sambung Nyawa) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.

Where to buy

In store

  • Indonesian and Malaysian grocery stores
  • Asian health food stores with Southeast Asian sections
  • Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
  • Naturopathic clinics and integrative medicine practices
  • Specialist herbal apothecaries and herbalist practices

Online

iHerb

Wide selection of standardised extracts, capsules, and powders with lab testing

Mountain Rose Herbs

Premium bulk dried herbs — certified organic, ethically sourced

Starwest Botanicals

Large selection of certified organic bulk herbs and powders

Herb Pharm

High-quality liquid extracts and tinctures, rigorous quality standards

Amazon

Convenient — verify brand certifications and check third-party testing

Etsy

Small-batch artisan herbalists, hand-harvested and wildcrafted herbs

Quality tips

When buying Bitter Leaf (Sambung Nyawa), look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products — quality varies enormously.