Learn and label guide
Explore terminology and evidence, one question at a time. Start with these curated summaries, then follow the original sources.
Canadian labels distinguish total package amounts, amounts per unit, and concentration by weight. Milligrams (mg) measure mass; mg/g measures mass per gram. Package net weight and the number of units are separate fields. A lot number and packaging date identify the batch. Label conventions vary by jurisdiction. A reported measurement is not proof of safety or a prediction of an individual response.
Cannabinoids are a group of substances found in cannabis; THC and CBD are two principal examples. The evidence depends on the specific substance, preparation, condition and study. Findings about a particular cannabinoid medicine do not establish benefits for all cannabis products. This summary does not establish individualized treatment or dosing advice.
Cannabis can affect attention, memory, coordination and reaction time. Health effects and risks depend on several factors, including frequency of use and other substances used. General educational information cannot determine an individual person’s safety or suitability. Questions about symptoms, pregnancy, medicines or treatment require a qualified health professional.
Cannabis can slow reaction time and decision-making and impair coordination and perception needed for driving. Combining cannabis with alcohol can increase impairment. A THC concentration alone is difficult to connect to an individual person’s driving impairment. This is a general safety summary, not a test of whether someone is fit to drive.
FDA distinguishes an approved prescription CBD medicine from other CBD products. The approval of one medicine does not establish that other CBD products are safe or effective. FDA identifies potential liver injury, drug interactions and other safety questions, and recommends discussing CBD use with a health professional. This summary gives no personal treatment advice.
Terpenes are among the main molecules contributing to cannabis plant odours. Different combinations can smell fruity, floral, earthy or otherwise distinctive; some terpenes also occur in other plants and foods. An aroma description alone does not establish potency, medical benefit or safety.
Soil is a dynamic system that supports plants and supplies water, air and nutrients. Its organisms and mineral components contribute to cycling water and nutrients. This is general plant science; it does not identify a cannabis growing method or diagnose a specific plant.
Water is involved in photosynthesis and transports dissolved nutrients through plant tissues. Water loss from leaves through transpiration can cool plants. These are broad biological processes, not a watering schedule or advice for cultivating a particular crop.
A label reporting 20 mg/g describes 20 milligrams per gram. Since one gram is 1,000 milligrams, that is 2% by mass. This is a unit conversion, not an amount to consume or a safety claim.
This guide does not identify products, find sellers, or provide individualized medical advice.
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