Stevia is a unique ingredient rising in the world, valued for being calorie-free as it helps reduce energy intake and added sugar in food. Like all other natural sugars, Stevia is plant-based, belonging to the Asteraceae Family. The leaves of stevia are mainly used as a sweetener and flavor enhancer in the food and beverage industry. The chemical compound obtained from stevia is considered to be the best alternative source of sugar especially for diabetes and obese patients. Several studies have shown that steviosides and similar substances, such as rebaudioside A and isosteviol, may have therapeutic benefits in addition to its sweetness. These benefits include anti-hyperglycemic, anti-hypertensive, anti-inflammatory, anti-tumor, anti-diarrheal, antibacterial, diuretic, antiseptic, anti-inflammatory, anti-fertility, hypotensive, and immunomodulatory actions. The use of Stevia prevents hypertension, acts as a bactericidal agent, and stimulates insulin production and utilization which in turn helps to control type-II diabetes and obesity. The drying temperature affects the quality of the stevia product; high temperatures reduce the medicinal and economic value. Multiple worldwide regulatory authorities have concluded that consuming high-quality stevia products in specified amounts is safe for everyone.
Resveratrol, a naturally occurring polyphenolic compound that performs as a phytoalexin, was isolated for the first time ever in 1940 and has gained attention of the scientific world ever since. Its miraculous properties have made it a phenolic prodigy, and the absence of any negative clinical experimentation or research just goes to prove its never-ending benefits. The conduction of more than 130 clinical trials with the administration of varying doses of resveratrol has showed different results in different settings. The failure to procure established and lasting results has led to a deferral in its use as dietary supplements which could be the reason of its unpopularity. The ultimate fate of resveratrol remains an open-ended question but there is no doubt that this compound certainly has inspired many scientific innovations and advances
Curcuma longa (Turmeric) belongs to the family Zingeberaceae, commonly used as a spice, pigment and additive also are one of the most important ingredients in the Indian subcontinent. In recent years’ research revealed several important functions of it. Among those being investigated is Turmeric. The aim of this review is to summarize the chemistry, referend, formulations of curcminoids and their biological activities and provides an update mainly on the pharmacological activities of the Turmeric, its extracts and credible medicinal applications of Turmeric, along with their safety evaluation. Its most important active ingredient is curcuminoids. Which are phenolic compounds and volatile oils being also present in turmeric are known for their functional and nutraceutical properties. Various preclinical cell culture and animal studies suggest that curcuminoids have extensive biological activity as antioxidants, neuroprotective, antitumor, anti-inflammatory, anti-acidogenic, radioprotective, and arthritis. Different clinical trials also suggest a potential therapeutic role for curcuminoids in numerous chronic diseases like colon cancer, lung cancer, breast cancer, inflammatory bowel diseases. Nowadays, several drugs have been developed deriving from traditional products, and current drug research is actively investigating the possible therapeutic roles of many Ayurvedic and Traditional Indian medicinal therapies. Health benefits attributed to curcuminoids have resulted in their comprehensive utilization in food and pharmaceutical formulations.
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