Medicinal plant, herbal medicine or supplement: what Anvisa assesses
Understand how medicinal plants, herbal medicines and food supplements differ, how they are regulated, what to read on labels and key safety warnings.
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Rooted in Evidence
Rooted in Evidence investigates medicinal plants and teas by combining scientific studies, official monographs, safety information, and traditional knowledge, clearly separating clinical evidence, historical use, and hypothesis.
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Berberine sold as “Natural Ozempic”: what Anvisa ordered seized and what the measure does not prove
The September 11, 2026 decision targets unregularized berberine-based products marketed with a “Natural Ozempic” appeal; here is what the measure actually means.
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Turmeric supplements in 2026: Anvisa limits, liver warning and who should avoid them
Understand the new curcuminoid limits, Anvisa's mandatory warning, who should avoid turmeric supplements and why ordinary culinary turmeric is not the focus of the alert.
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Guaco in 2026: what Anvisa recognizes, how to use it, and the key warnings
Anvisa’s monograph classifies guaco under traditional use, with specific preparations, doses, duration limits, and interactions that restrict broader claims.
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Espinheira-santa: what the Brazilian Pharmacopoeia recognizes, official warnings, and what evidence cannot promise
Brazilian official sources recognize traditional use of espinheira-santa for relief of heartburn and dyspepsia, but that is not the same as curing gastritis, reflux disease, or ulc...
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Brazil’s 2026 herbal-medicine rules: what changed in simplified registration and what registration alone does not prove
Anvisa’s new framework updated herbal-medicine registration, quality controls, and monographs. Here is what the simplified pathway establishes — and what it does not.
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Brazilian Pharmacopoeia 8th edition: what changed for medicinal plants and what it does not prove about efficacy
The 8th edition updates medicinal-plant monographs and methods. Learn how to read the compendium without confusing quality control with clinical efficacy.
Read articleMedicinal plant, herbal medicine or supplement: what Anvisa assesses
Understand how medicinal plants, herbal medicines and food supplements differ, how they are regulated, what to read on labels and key safety warnings.
Read articleBerberine sold as “Natural Ozempic”: what Anvisa ordered seized and what the measure does not prove
The September 11, 2026 decision targets unregularized berberine-based products marketed with a “Natural Ozempic” appeal; here is what the measure actually means.
Read articleTurmeric supplements in 2026: Anvisa limits, liver warning and who should avoid them
Understand the new curcuminoid limits, Anvisa's mandatory warning, who should avoid turmeric supplements and why ordinary culinary turmeric is not the focus of the alert.
Read articleGuaco in 2026: what Anvisa recognizes, how to use it, and the key warnings
Anvisa’s monograph classifies guaco under traditional use, with specific preparations, doses, duration limits, and interactions that restrict broader claims.
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- 01Brazil’s 2026 herbal-medicine rules: what changed in simplified registration and what registration alone does not provePharmacopoeia & Phytotherapy
- 02Brazilian Pharmacopoeia 8th edition: what changed for medicinal plants and what it does not prove about efficacyPharmacopoeia & Phytotherapy
- 03Turmeric supplements in 2026: Anvisa limits, liver warning and who should avoid themSafety & Interactions
- 04Espinheira-santa: what the Brazilian Pharmacopoeia recognizes, official warnings, and what evidence cannot promisePharmacopoeia & Phytotherapy
- 05Guaco in 2026: what Anvisa recognizes, how to use it, and the key warningsPharmacopoeia & Phytotherapy
Safety & Interactions
Contraindications, adverse effects, identification, drug interactions and situations that require professional guidance.
Medicinal plant, herbal medicine or supplement: what Anvisa assesses
Understand how medicinal plants, herbal medicines and food supplements differ, how they are regulated, what to read on labels and key safety warnings.
Read articleBerberine sold as “Natural Ozempic”: what Anvisa ordered seized and what the measure does not prove
The September 11, 2026 decision targets unregularized berberine-based products marketed with a “Natural Ozempic” appeal; here is what the measure actually means.
Read articleTurmeric supplements in 2026: Anvisa limits, liver warning and who should avoid them
Understand the new curcuminoid limits, Anvisa's mandatory warning, who should avoid turmeric supplements and why ordinary culinary turmeric is not the focus of the alert.
Read articlePharmacopoeia & Phytotherapy
Monographs, regulation, SUS, Anvisa and official references on medicinal plants and herbal medicines.
Guaco in 2026: what Anvisa recognizes, how to use it, and the key warnings
Anvisa’s monograph classifies guaco under traditional use, with specific preparations, doses, duration limits, and interactions that restrict broader claims.
Read articleEspinheira-santa: what the Brazilian Pharmacopoeia recognizes, official warnings, and what evidence cannot promise
Brazilian official sources recognize traditional use of espinheira-santa for relief of heartburn and dyspepsia, but that is not the same as curing gastritis, reflux disease, or ulc...
Read articleBrazil’s 2026 herbal-medicine rules: what changed in simplified registration and what registration alone does not prove
Anvisa’s new framework updated herbal-medicine registration, quality controls, and monographs. Here is what the simplified pathway establishes — and what it does not.
Read articleBrazilian Pharmacopoeia 8th edition: what changed for medicinal plants and what it does not prove about efficacy
The 8th edition updates medicinal-plant monographs and methods. Learn how to read the compendium without confusing quality control with clinical efficacy.
Read articleAbout Rooted in Evidence
Rooted in Evidence is a blog dedicated to medicinal plants, herbs, teas, and the knowledge built around them over time.
Each piece seeks to separate three different dimensions: uses documented among peoples and traditions, findings from scientific research, and known limits or risks.
Traditional use is not automatically presented as evidence of clinical effectiveness. Likewise, a result obtained with an extract, capsule, or standardized formulation is not automatically attributed to a homemade tea.
Whenever possible, we use scientific studies, systematic reviews, official monographs, the Brazilian Pharmacopoeia, and ethnobotanical sources. Health-related content should present relevant contraindications, interactions, and limitations.
The blog is informational and does not replace assessment, diagnosis, or treatment by a healthcare professional.