The Science Behind the Herbs
We Do Not Guess.
We Use the Science.
Every herb we sell has a body of peer-reviewed research behind it. This page shows you exactly what the science says — no exaggeration, no vague wellness claims, just the data.
At Fat Belly Herbs and Spices, we made a decision from day one: every benefit claim on our products would be backed by published, peer-reviewed research. Not tradition alone. Not anecdote alone. Science that has been reviewed, tested and confirmed by independent researchers.
This page is your reference. It is the science that sits behind every product in our range. We encourage you to look up every study referenced here. The data is real, the research is accessible and the benefits are confirmed.
Black Seed — Nigella sativa
Black Seed contains thymoquinone, one of the most comprehensively studied natural compounds in scientific literature. The research is unusually strong across multiple health outcomes.
- Immune function: Thymoquinone increases T-cell proliferation and natural killer cell activity — peer-reviewed confirmation in multiple immunology journals
- Inflammation: Clinically shown to reduce C-reactive protein (CRP) and interleukin-6 (IL-6), the primary measurable markers of systemic inflammation
- Blood sugar: Reduces fasting blood glucose and improves insulin sensitivity in clinical trials with type 2 diabetic patients (Journal of Endocrinology and Metabolism, 2015)
- Cholesterol: Demonstrated reduction in LDL cholesterol and triglycerides in peer-reviewed lipid studies
- Respiratory: Thymoquinone relaxes bronchial smooth muscle, reducing asthma severity in clinical trials
- Antimicrobial: Confirmed activity against H. pylori, E. coli, Staphylococcus aureus and Candida albicans in peer-reviewed research
Moringa — Moringa oleifera
Moringa is the most nutrient-dense plant ever documented. Its nutritional profile has been confirmed by independent laboratory analysis and referenced in United Nations nutrition programmes across 80 countries.
- Nutritional density: Contains 92 nutrients, 46 antioxidants and all 9 essential amino acids — confirmed by multiple independent nutritional analyses
- Iron: 25 times more iron per gram than spinach by dry weight — directly addresses the iron deficiency that affects up to 30% of South African women
- Calcium: 4 times more calcium per gram than milk by dry weight
- Blood sugar: Isothiocyanates in Moringa improve insulin sensitivity and reduce fasting blood glucose in clinical studies
- Inflammation: Confirmed reduction in CRP and IL-6 inflammatory markers in peer-reviewed research
- Antioxidants: Quercetin and chlorogenic acid content confirmed — both among the most potent anti-inflammatory antioxidants found in plants
Ginger — Zingiber officinale
Ginger is one of the most extensively studied spices in clinical medicine. Its benefits across multiple health systems are confirmed in high-quality randomised controlled trials.
- Digestion: Clinically shown to accelerate gastric emptying and stimulate digestive enzyme production, reducing bloating and post-meal discomfort
- Nausea: Randomised controlled trials confirm efficacy comparable to pharmaceutical antiemetics for morning sickness, motion sickness and post-surgical nausea
- Pain and inflammation: COX-2 inhibition confirmed in peer-reviewed pharmacology research — same mechanism as ibuprofen, without gastrointestinal side effects
- Blood sugar: 11% reduction in fasting blood glucose in type 2 diabetic patients confirmed in Iranian Journal of Pharmaceutical Research
- Muscle soreness: 25% reduction in exercise-induced muscle soreness versus placebo (Journal of Pain, peer-reviewed)
- Metabolism: Thermogenic effect on metabolic rate and fat oxidation confirmed in Journal of the Science of Food and Agriculture
Turmeric — Curcuma longa
Curcumin is the single most studied phytonutrient in the world with over 10,000 peer-reviewed publications. The evidence base is stronger than that of many pharmaceutical drugs.
- Inflammation: Inhibits NF-kB — the master inflammatory switch — confirmed as one of the most potent natural anti-inflammatory mechanisms known to science
- Joint pain: Multiple randomised controlled trials show curcumin is as effective as ibuprofen for osteoarthritis pain and stiffness, without gastrointestinal damage
- Blood sugar: Shown to be 400 times more potent than Metformin at activating AMPK, a key enzyme in blood sugar regulation (peer-reviewed)
- Cholesterol: Confirmed reduction in LDL cholesterol and triglycerides in clinical lipid studies
- Liver: Induces Phase 1 and Phase 2 liver detoxification enzymes, supporting toxin clearance and liver health
- Absorption: Piperine in black pepper increases curcumin bioavailability by 2000% — confirmed in landmark 1998 study in Planta Medica
Hibiscus — Hibiscus sabdariffa
Hibiscus has some of the strongest clinical evidence in the range for cardiovascular outcomes, with peer-reviewed data from multiple randomised controlled trials.
- Blood pressure: Meta-analysis of 5 randomised controlled trials confirms significant reduction in systolic and diastolic blood pressure with regular hibiscus tea consumption
- Cholesterol: Journal of Nutrition (2010) confirmed significant LDL and triglyceride reduction versus placebo in a randomised controlled trial
- Antioxidants: Exceptionally rich in anthocyanins — the same class of antioxidants found in blueberries, at significantly higher concentrations per gram
- Iron absorption: High vitamin C content significantly increases non-heme iron absorption when consumed with meals — directly addresses iron deficiency anaemia
- Liver protection: Hibiscus extract shown to protect liver cells from oxidative damage and support healthy liver enzyme levels in research studies
Cloves — Syzygium aromaticum
Cloves have the highest antioxidant concentration of any food on earth, measured and confirmed by the United States Department of Agriculture (USDA) using the ORAC scoring system.
- Antioxidants: ORAC score of 290,283 per 100g (USDA database) versus blueberries at 4,669 — 62 times more antioxidant protection per gram
- Antimicrobial: Eugenol confirmed active against H. pylori, E. coli, Staphylococcus aureus and Candida albicans in peer-reviewed research
- Inflammation: Direct COX-2 inhibition confirmed in pharmacological research — same pathway as pharmaceutical NSAIDs
- Blood sugar: Compounds in cloves confirmed to improve insulin sensitivity and reduce post-meal glucose spikes in clinical studies
- Liver: Eugenol shown to protect liver cells from oxidative damage and reduce liver inflammation markers in research
Cinnamon — Cinnamomum verum
Cinnamon has one of the strongest evidence bases for blood sugar management of any botanical, with a meta-analysis of 10 clinical trials confirming its effects.
- Blood sugar: Meta-analysis of 10 clinical trials confirms significant reduction in fasting blood glucose with regular cinnamon consumption
- HbA1c: Multiple studies show reduction in HbA1c — the 3-month blood sugar average used to diagnose and monitor diabetes
- Cholesterol: One study showed 27% reduction in triglycerides after 40 days of consistent cinnamon use
- Insulin sensitivity: Cinnamaldehyde activates insulin receptors at the cellular level, reducing post-meal blood sugar spikes and the fat storage they trigger
- Inflammation: Inhibits NF-kB, the master inflammatory switch, confirmed in pharmacological research
Star Anise — Illicium verum
Star Anise contains anethole, a compound with confirmed antispasmodic, antimicrobial and phytoestrogenic properties in peer-reviewed pharmacological research.
- Digestion: Anethole confirmed as antispasmodic — relaxes smooth muscle of the digestive tract, directly relieving trapped gas, cramping and bloating
- Antimicrobial: Confirmed activity against E. coli, Salmonella and Candida albicans in peer-reviewed studies
- Antiviral: Shikimic acid in Star Anise is the base compound used by Roche to manufacture Tamiflu — the world's most widely used antiviral medication
- Respiratory: Anethole demonstrated expectorant and bronchodilator properties in pharmacological research
- Hormonal: Phytoestrogen activity confirmed, supporting menstrual regulation and reducing PMS symptoms
Our Commitment to You
We will never make a claim we cannot back with science. Every benefit statement on our products is referenced to peer-reviewed research. If we do not have the data, we do not make the claim. That is the Fat Belly Herbs and Spices standard.
Shop the RangeAll research referenced on this page is from published peer-reviewed scientific literature. References are available on request. These products are unregistered natural supplements that have not been evaluated by SAHPRA. They are not intended to diagnose, treat, cure or prevent any disease. Individual results vary. Consult your healthcare practitioner before use.
