In addition to well-known vitamins and minerals, researchers and the public are increasingly interested in compounds that occur naturally in the body or are derived from plants. These include substances such as melatonin, sulforaphane, berberine, and thymoquinone - compounds discussed in various nutritional science contexts.
Here, we take a closer look at four of them: melatonin, sulforaphane, berberine, and thymoquinone. Their areas of application range from cellular protection and metabolic support to immune regulation.
Melatonin - the body’s internal timekeeper for the sleep-wake cycle
Melatonin is a hormone produced by the body, especially in the evening - it helps regulate the natural day-night rhythm.
In certain situations, such as traveling across time zones or dealing with trouble falling asleep, targeted supplementation may be considered.*
Sulforaphane - the active compound from broccoli
Sulforaphane is a secondary plant compound found especially in broccoli sprouts. Research explores its role in cellular detoxification, enzyme activation, and inhibition of inflammatory signals.
Its potential lies particularly in activating the body’s own defense systems (e.g. phase II enzymes). Since sulforaphane is sensitive and not stable long-term, thoughtful formulation and ingredient quality are essential.
Berberine - metabolism & gut microbiome
Berberine is an alkaloid traditionally used in Chinese and Ayurvedic medicine - for example, to support digestion, blood sugar regulation, and inflammatory processes.
Modern studies examine its effects on glucose metabolism, lipid regulation, and the microbiome. Due to its poor water solubility, the method of delivery is a key factor.
Thymoquinone - power from black seed
Thymoquinone is the main active component in the essential oil of black seed (Nigella sativa). It has antioxidant and cell-protective properties and shows potential in preclinical studies for immune modulation.
Its broad spectrum of effects includes stress regulation at the cellular level, histamine modulation, and anti-inflammatory activity. The bioactive potential of thymoquinone strongly depends on extraction and stabilization methods.
Common ground: structure & stability in focus
Melatonin, sulforaphane, berberine, and thymoquinone are among the compounds receiving growing attention in nutritional science. What they share is that their chemical characteristics - such as sensitivity to light, air, or digestive enzymes - can present challenges in formulation.
This is why, in the development of modern supplements, aspects like stability and delivery form are increasingly coming to the forefront.
*Melatonin contributes to reducing the time it takes to fall asleep. This effect occurs when 1 mg is taken shortly before bedtime.
It also helps relieve the subjective sensation of jet lag - with an intake of at least 0.5 mg.
