Browse the evidence

High dietary calcium intake accelerates body weight and fat mass loss in energy-restricted individuals by suppressing adipocyte intracellular calcium, which simultaneously stimulates lipolysis and inhibits lipogenesis.

If you are trying to lose weight, ensure your diet is high in calcium, preferably from dairy sources like milk or yogurt, rather than just elemental supplements. This helps your body burn fat more efficiently by shifting metabolism from storage to expenditure, especially when you are eating fewer calories.

Omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementation (1000-2700 mg/day) significantly decreases serum liver enzymes (ALT, AST, GGT) and reduces liver fat in NAFLD patients.

Consider omega-3 supplementation (1000-2700 mg/day of EPA/DHA) as a potential adjunct to lifestyle changes, as it may help lower liver enzymes and liver fat. However, discuss this with a doctor as further research is needed.

Metformin therapy (2000 mg/day for 48 weeks) improves liver histology and serum ALT levels in approximately 30% of patients with NASH, primarily through weight loss rather than direct insulin sensitization.

For NASH patients, metformin (up to 2g/day) can improve liver health, but only about 3 in 10 people see significant histological benefits. Crucially, this benefit appears driven by the weight loss the drug causes, not its direct effect on insulin. If you do not lose weight on metformin, you are unlikely to see liver histology improvements. Gastrointestinal side effects are common but often manageable with slow dose titration.

Australian native microalgae (Scenedesmus sp., Nannochloropsis sp., Dunaliella sp., and a chlorophytic polyculture) offer superior or comparable nutritional profiles to commercial Spirulina and Chlorella supplements, specifically regarding high-quality protein, essential polyunsaturated fatty acids (EPA, ALA, ARA), and antioxidant pigments.

Consider adding Australian native microalgae like Nannochloropsis or Scenedesmus to your supplement regimen. These species offer high-quality protein and essential fatty acids like EPA and ALA, often in superior amounts compared to standard Spirulina or Chlorella products. This can be a strategic way to boost your intake of anti-inflammatory fats and antioxidants.

Nannochloropsis sp. is a superior source of eicosapentaenoic acid (EPA) and arachidonic acid (ARA) compared to commercial Spirulina and Chlorella, which lack detectable levels of these long-chain omega-3 fatty acids.

If you are looking for plant-based EPA, Nannochloropsis sp. is a much better source than Spirulina. This study found Spirulina had no detectable omega-3s, while Nannochloropsis sp. was rich in EPA. Look for supplements specifying Nannochloropsis sp. if you want these specific fatty acids.

Australian native microalgae (Scenedesmus sp., Dunaliella sp., and CPC) provide high-quality protein with Essential Amino Acid Index (EAAI) scores indicating 'high' quality, surpassing the 'good' or 'useful' quality of commercial Chlorella and Spirulina products.

When choosing a microalgal protein supplement, look for Australian native species like Scenedesmus sp. or Dunaliella sp. They offer 'high' quality protein with better essential amino acid profiles than many commercial Spirulina or Chlorella products, which are rated 'good' or 'useful'.

Dietary polyphenols prevent and manage Type 2 diabetes mellitus through insulin-dependent mechanisms (protection of pancreatic islet β-cells, reduction of apoptosis, promotion of proliferation, attenuation of oxidative stress, activation of insulin signaling, and stimulation of insulin secretion) and insulin-independent mechanisms (inhibition of glucose absorption, inhibition of digestive enzymes, regulation of intestinal microbiota, modification of inflammation response, and inhibition of advanced glycation end products formation).

Incorporate polyphenol-rich foods (like berries, tea, coffee, and wine) into your diet as part of a broader strategy for managing Type 2 Diabetes. Do not rely on isolated polyphenol supplements as a substitute for prescribed medication, as clinical evidence for their standalone therapeutic effect is currently limited.

Specific polyphenols (resveratrol, curcumin, and anthocyanins) have demonstrated antidiabetic activity in human studies, whereas the therapeutic effect of individual flavonoids or isoflavones in patients is not supported by current clinical data.

If you are looking to use polyphenols for diabetes management, focus on dietary sources rich in resveratrol (grapes/wine), curcumin (turmeric), or anthocyanins (berries), as these have shown activity in human studies. Avoid relying on generic flavonoid supplements which lack therapeutic evidence in patients.

Quercetin supplementation reduces systemic inflammation (specifically TNF-α, IL-6, and CRP) in humans, which may mitigate risks associated with obesity and type 2 diabetes.

If you are looking to reduce inflammation associated with obesity or metabolic risk, quercetin supplementation (150mg daily for 6 weeks) has been shown in human studies to lower TNF-α levels. This is distinct from dietary intake, which is often much lower. Consult a doctor before starting, especially if you have existing health conditions.

Higher adherence to the Mediterranean Diet (MD) is significantly associated with lower testosterone levels and reduced clinical severity (hirsutism) in women with Polycystic Ovary Syndrome (PCOS).

For women with PCOS, simply counting calories may not be enough to manage hormonal symptoms like high testosterone or hirsutism. Prioritizing a Mediterranean-style diet—rich in fiber, healthy fats (olive oil, nuts, fish), and complex carbohydrates—is associated with significantly lower testosterone levels and reduced clinical severity, independent of total calorie intake.

Lower adherence to the Mediterranean Diet in women with PCOS is associated with adverse body composition, specifically lower Phase Angle (PhA) and Fat-Free Mass (FFM).

Women with PCOS often have worse body composition (lower muscle mass and cellular health, indicated by Phase Angle) than healthy women of the same weight. Improving diet quality through a Mediterranean approach may help preserve Fat-Free Mass and improve cellular health markers, even if weight loss is not the primary goal.

Consumption of fermented foods containing live lactic acid bacteria (LAB) delivers high loads of viable microbes (up to 10^9 CFU/g or ml) to the human gastrointestinal tract, contributing to the transient gut microbiome and offering health-promoting properties via metabolic activity.

Eat fermented foods like yogurt, kefir, kimchi, and sauerkraut that contain live cultures. These deliver billions of bacteria to your gut, which may support health through metabolic byproducts and transient microbial presence. Avoid assuming all fermented foods (like bread or beer) contain live bacteria, as heat or processing often kills them. For maximum benefit, choose artisanal or refrigerated products over heavily processed shelf-stable versions.

Subclinical magnesium deficiency, defined by intracellular depletion despite normal serum levels, is a principal driver of cardiovascular disease and chronic conditions like diabetes and hypertension.

Standard blood tests often miss magnesium deficiency because they only measure a small fraction of your body's total stores. To support heart health and prevent chronic disease, focus on magnesium-rich whole foods (nuts, seeds, dark leafy greens) and consider supplementation if your diet is heavily processed, as modern food crops are increasingly depleted of magnesium. Aim for higher-than-minimum intake to maintain optimal intracellular levels.

Dietary factors such as high phosphorus (from soft drinks and processed foods) and high calcium intake increase magnesium requirements and exacerbate magnesium deficiency.

If you consume a lot of soda, processed meats, or take calcium supplements, you may need more magnesium. Modern diets have shifted the calcium-to-magnesium ratio significantly higher, which can worsen magnesium deficiency. Balance your intake by reducing processed foods high in phosphoric acid and ensuring you get enough magnesium from whole foods.

Individuals with 'morningness' personality traits and older age experience greater difficulties adjusting to shift work and have higher rates of health problems.

If you are naturally an early riser ('morning person') or are older, night shifts will likely be harder on you. You may experience more sleep problems and health issues. Consider discussing schedule adjustments with your employer if possible.

Implementing a standardized nutrient profiling system, such as the UK's traffic light labeling or the Ofcom advertising model, enables consumers to make healthier dietary choices and stimulates industry reformulation, thereby supporting public health goals like obesity reduction.

Look for standardized front-of-pack labels like the UK Traffic Light system. Green means low in fat/sugar/salt, red means high. Use this to quickly identify healthier options and avoid products with multiple red lights, especially for children's foods. This simplifies decision-making compared to reading complex back-of-pack ingredients lists.

Cyanidin-3-O-glucoside (Cy3G) exhibits significant bioactivity as a DNA radical scavenger, gastro-protective agent, anti-inflammatory, and anti-thrombotic factor, offering protection against Helicobacter pylori infection, age-related diseases, type 2 diabetes, cardiovascular disease, metabolic syndrome, and oral cancer.

Include Cy3G-rich foods like black elderberry, blackberries, and red grapes in your diet. While only a small fraction reaches your bloodstream, the compound and its metabolites work in your gut and through recycling mechanisms to support heart health, blood sugar control, and inflammation reduction.

Excessive fructose intake increases plasma uric acid levels, which acts as a biomarker and potential mediator for insulin resistance and metabolic syndrome.

Be aware that high fructose intake can raise uric acid levels, which is linked to insulin resistance and metabolic syndrome. This risk is higher with sugary beverages and hypercaloric diets.

Omega-3 polyunsaturated fatty acid (PUFA) supplementation significantly reduces hepatic fat content in NAFLD patients, though the optimal dose and long-term histological benefits remain undetermined.

High-dose Omega-3 supplements (0.83-13.7g/day) can significantly reduce liver fat in NAFLD patients with few side effects. However, the optimal dose is unknown, and it should be viewed as an adjunct to lifestyle changes, not a standalone cure, as long-term histological benefits are not yet established.

IGF-1 deficiency is a key pathophysiological factor in metabolic syndrome, and restoring physiological levels of IGF-1 via replacement therapy can improve insulin sensitivity, glucose homeostasis, and lipid metabolism.

If you have metabolic syndrome or type 2 diabetes and standard lifestyle changes aren't working, your body might be deficient in IGF-1, a hormone that helps regulate blood sugar and fats. Restoring IGF-1 to normal, natural levels (not high doses) may help improve your body's sensitivity to insulin and metabolic health. This should only be done under medical supervision to ensure levels stay within a safe, physiological range.

Virgin olive oil minor components (phenols, squalene, triterpenes) provide antioxidant, anti-inflammatory, and antithrombotic benefits that protect against oxidative stress and improve endothelial function.

Choose 'virgin' or 'extra virgin' olive oil over refined oils. The unrefined nature preserves minor components like phenols and squalene, which help reduce inflammation and protect blood vessel lining.

Western dietary patterns (high fat/sugar) cause gut dysbiosis and 'leaky gut' (increased permeability), allowing bacterial endotoxins (LPS) to enter circulation, triggering systemic and neuro-inflammation.

Eating a Western diet (high fat/sugar, low fiber) damages your gut barrier, letting toxins into your blood and brain, causing inflammation. To protect your brain, prioritize fiber and reduce saturated fats to support a healthy gut barrier and reduce inflammation.

Disruption of circadian rhythms and sleep loss alters gut microbiota composition (dysbiosis), leading to increased intestinal permeability and systemic low-grade inflammation, which contributes to metabolic dysfunction and mood disorders.

Prioritize consistent sleep schedules and duration. If you are a shift worker or experience jet lag, be aware that your gut health and metabolic risk are compromised. Restoring circadian alignment is a prerequisite for optimal gut barrier function and metabolic health.

Specific probiotic strains (Lactobacillus, Bifidobacterium) can exert anti-anxiety and antidepressant effects by modulating the gut-brain axis, potentially via GABA secretion and vagus nerve signaling.

Consider high-quality probiotics containing Lactobacillus and Bifidobacterium strains if you struggle with stress or anxiety, especially if other interventions have failed. Note that effects may vary by strain and individual microbiota.