<p><i>Cannabis</i> is a very novel plant genus which is important for both animals and human nutrition. This study reviewed the reported data on the physicochemical, nutritional and elemental/metal profiles of <i>Cannabis</i> species. On the basis of collected data here, the minimum range of moisture content reported was 1.1% in seeds and maximum 11.90% in <i>C. indica</i>. Maximum oil content of 51.06% in seeds with minimum 3.7% and maximum 25.7% ash content in the seeds and extracted flower of <i>C. sativa</i> (hemp) were reported. Varied nutrients with varying levels in <i>Cannabis</i> were documented such as proteins (minimum 4.21% in stem of <i>C. indica</i> and maximum 43.04% in seeds of <i>C. sativa</i>-hemp), carbohydrates (minimum 4% and maximum 43% in seeds of <i>C. sativa</i>-hemp), fiber (minimum 2.9% and maximum 40.4% in seeds of <i>C. sativa</i>-hemp) and fat (minimum 2.67% in stem of <i>C. indica</i> and maximum 55% in seeds of <i>C. sativa</i>-hemp). More than 30 fatty acids were reported in the seeds with maximum content of linoleic acid (62.89%), a-linolenic acid (23.43%) and oleic acid (18.8%). The maximum SFAs, UFAs, PUFAs, MUFAs, ω-3 and ω-6 fatty acids with 18 amino acids in <i>Cannabis</i> seeds were reported. Around 36 macro and micro elements with heavy metals like Hg, Pb, Cd and As with varied concentrations were reported in <i>Cannabis</i>. <i>Cannabis</i> is therefore one of the potential nutrient sources and its seeds specifically are important for product development and drug formulations.</p>