Of special interest and worthy of mentioning are some biological activity and health-promoting properties of the important ones; for instance, gallic acid has been shown to exhibit antioxidant, cardioprotective and anti-inflammatory properties [86], anti-hypertension effects by preventing the activity of angiotensin-converting enzymes and reducing blood pressure in hypertensive rats [87], anti-obesity properties [88] and anti-cancer potentials [89]. Here, ACE is linked to obesity due to melanocortin 4 receptor deficiency.