Pungent Plants Rape/Mustard seed, Moringa, Curry Leaf (Murraya Keonigii, in the photo)

See also- https://everythingiknowaboutthatilearnedfrommysleddogs.wordpress.com/2012/10/28/the-missing-stink/

No pain, no gain? >Rapeseed-mustard is an important source of edible oil in Indian diet especially in Eastern and North-Western India. The major fatty acids of rapeseed-mustard oil are oleic, linoleic, linolenic, eicosenoic and erucic acid. Erucic acid in oil of Indian rapeseed-mustard varieties is quite high (Chauhan et al. 2007). High amount of erucic acid in edible oils has been reported to impair myocardial conductance, causes lipidosis in children and increases blood cholestrol (Gopalan et al. 1974; Renard and McGregor 1976; Ackman et al. 1977). Rapeseed-mustard cultivars grown in India also have high level of glucosinolate content (Chauhan et al. 2007). Glucosinolates, a group of plant thioglucosides, found principally among members of family Brassicaceae are responsible for the characteristic pungency of rapeseed-mustard oil. The glucosinolates are broken down by the enzyme thioglucoside glucohydrolase commonly known as myrosinase to yield sulphate, glucose and other aglucon products. Cleavage products from hydrolysis are detrimental to animal health as they reduce the feed palatability and affect the iodine uptake by the thyroid glands thus reducing feed efficiency and weight gains (Bille et al. 1983; Fenwick et al. 1983; Bell 1984) especially in non-ruminants such as pigs and poultry. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3551133/)
* But glucosinolates are also considered to be healthy constituents in human diets.
>The enthusiasm for the health benefits of M. oleifera is in dire contrast with the scarcity of strong experimental and clinical evidence supporting them. Fortunately, the chasm is slowly being filled. In this article, I review current scientific data on the corrective potential of M. oleifera leaves in chronic hyperglycemia and dyslipidemia, as symptoms of diabetes and cardiovascular disease (CVD) risk. Reported studies in experimental animals and humans, although limited in number and variable in design, seem concordant in their support for this potential. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3290775/)
>Status of lipid peroxidation was studied in rats induced high fat diet and some commonly used spices, viz. Murraya koenigit and Brassica juncea. The study revealed that these species alter the peroxidation (thiobarbituric acid reactive substances) level to a beneficial extent. Histological studies also focus on modulation of hepatic functions to near normal level. (https://www.ncbi.nlm.nih.gov/pubmed/9315222)
>M. koenigii is a traditional Indian Ayurvedic herb. Apart from being a useful food supplement in curries and chutneys, the herb possesses immense therapeutic potential. The therapeutic usefulness of the herb can be easily understood from the present review. Leaves, fruits, roots and bark of this plant are a rich source of carbazole alkaloids. These alkaloids have been reported for their various pharmacological activities such as antitumor, antiviral, anti-inflammatory, antidiarrhoeal, diuretic and antioxidant activities. Apart from these activities, the plant is reported to possess a wide spectrum of biological activities.
>An infusion of the roasted leaves is used to stop vomiting. The green tender leaves are eaten raw for the cure of dysentery. A decoction of the leaves is sometimes given with bitters as a febrifuge and the leaves have been claimed to be used with mint in the form of chutney to check vomiting. (http://www.jcimjournal.com/jim/FullText2.aspx?articleID=jcim20110803)