Organ meats are some of the most nutrient-dense foods on the planet, consumed by cultures worldwide for centuries. Evidence from early human ancestors such as Homohabilis and Homo erectus suggests they regularly consumed entire carcasses, with cut-marked bones from Olduvai Gorge showing butchery consistently with accessing internal organs.
It’s no surprise humans have long valued organs like liver, heart, kidney and brain; they’re far more nutrient-rich than muscle meat. Aiello & Wheeler (1995) proposed that diets including organ meats supported the evolution of larger human brains, while modern hunter-gatherers such as the Hadza often eat organ meats first or share them preferentially.
The work of Weston A Price and the Weston A Price foundation continues to shed light on nutrient-dense traditional diets, with Price’s research showing that cultures consuming foods like organ meats and animal fats enjoyed exceptional health and low rates of chronic disease. Yet over the last century, nose-to-tail eating has declined with industrialisation and the rise of convenience foods. In cutting these foods out, we’ve also reduced highly bioavailable key nutrients such as B12, iron, copper, vitamin A, CoQ10 and choline from the modern diet, many of which are now among the most common deficiencies worldwide. While not a cure-all, organ meats’ high bioavailability (the ease of absorption) makes them a valuable tool for supporting nutrient levels. Many people find supplementing with Grass Fed Organic Beef Organs helps fill the nutrient gaps and supports energy and wellbeing.
“Beef organs have truly been life changing since I have implemented them into my routine”. - Abeigh N.
A Natural Multivitamin Alternative?
Research shows organ meats deliver iron, B vitamins, copper, zinc and vitamin A in far higher concentrations than muscle meats. They also rank among the most nutrient dense ‘anti depressant foods’ in studies.
Their real advantage lies in their bioavailability. Nutrients in beef organs are easily absorbed by the body. The folate in liver is naturally active and pre-methylated, B12 from animal sources is far more useable than plant sourced, and the iron and zinc in organ meats is in a natural ‘heme’ form, making the nutrients much more easily absorbed than from plant foods and some non-heme synthetic supplements.
“Great product I really feel better taking them compared to synthetic vitamins!” - Sean W.
We know our Organic Grass Fed Beef Organs are a favourite among many customers, and while we like to let the reviews speak for themselves, we also know it’s important to share the science behind the supplements, so let’s dive in…
Exploring Liver, Heart & Kidney: What The Research Says
Beef Liver
Beef Liver is one of the most nutrient dense foods available, supporting blood health, neurological function and vision through its high content of bioavailable iron, B12, copper and preformed vitamin A (retinol).
1.) Supports Normal Blood Iron Status
Beef liver is one of the richest natural sources of heme iron, the most easily absorbed form (15-35% vs. 2-20% of plant-based iron.) This makes it particularly valuable for women and teenage girls who research shows tend to have below-minimum iron intakes in the UK. A study of 74 participants found iron absorption from bovine liver reached 11% in those with normal levels, and 20-30% in those who were deficient, showing the body’s natural intelligence when it comes to prioritising the nutrients it needs.
2.) Supports Neurological Function
Beef Liver is also a rich source of vitamin B12, essential for healthy nerves and cognitive function. Research shows that correcting B12 deficiency improves cognition and neuropathy symptoms. Natural forms of B12 in liver are already active and more easily utilised than synthetic B12 found in many supplements, meaning the body nay absorb and store the nutrients more efficiently. Our Organic Grass Fed Beef Organs provide a high source of B12, with 162% of the RDA.
3.) Supports normal vision
Liver provides preformed vitamin A (retinol), vital for creating rhodopsin in the retina and maintaining healthy vision. Studies show vitamin A supplementation can reverse night blindness and support eye development during pregnancy. Whilst this study isn’t based on whole-food vitamin A from liver, is still demonstrates the power of this nutrient. Unlike beta-carotene from plants (which must first be converted into true vitamin A), retinol from liver is instantly available - an important consideration, as around 45% of people have a BMCO1 gene variant that limits conversion efficiency. Our Organic Grass Fed Beef Organs provide a high source of vitamin A with 32% of the RDA.
4.) Supports energy production and iron metabolism
Liver is a rich source of copper, important for energy production and iron utilisation. Copper is essential for balancing iron levels in the body as it is a critical cofactor for enzymes that enable the body to absorb, transport and utilise iron. Without sufficient copper, iron may become ‘trapped’ in tissues, potentially leading to symptoms of anemia, even if iron consumption is high. Our Organic Grass Fed Beef Liver is a high source of copper, with 50% of the NRV.
“I have been using them for about a year now. I can tell that my energy levels are much better and I feel much better overall.” - Miguel
Bundle & Save
Try all three of our best selling products with our Foundation Bundle which includes: Grass-Fed Beef Protein (your choice of flavour, Grass-Fed Collagen & Organic Grass-Fed Beef Organs.
Beef Heart
Beef heart is a powerhouse of nutrients that support cardiovascular health, immune function and energy production thanks to its richness in CoQ10, zinc and taurine.
1.) Supports Cardiovascular Health with CoQ10
Beef Heart is of the best dietary sources of CoQ10, essential for mitochondrial energy production, and functions as a potent antioxidant. Low levels are linked to impaired cardiac function and supplementation studies show significant improvements in patients with heart disease when CoQ10 levels are raised.
1.) Rich in Taurine for Heart, Vision & Nerves
The amino acid taurine - abundant in cardiac and neural tissue - supports cardiovascular and nervous system function. Clinical research, including 20 randomised controlled trials, shows taurine can lower heart rate and blood pressure, improve heart failure symptoms, and protect the eyes and nervous system through its antioxidant effects.
“Absolutely love the beef organs, been using them for 18 months and feel on top of the world”. - Michael R.
Beef Kidney
Beef Kidney is a nutrient-dense organ which may support energy metabolism, thyroid function and histamine balance, thanks to its rich content of vitamin B2 (riboflavin), selenium and DAO.
1.) Vitamin B2 (riboflavin) for Energy & Cellular Health
Beef Kidney provides vitamin B2 (riboflavin), key for mitochondrial energy production and overall cellular function. B2 forms the coenzymes FAD and FMN, which drive metabolism and support skin and eye health. Research shows deficiency in this nutrient can lead to skin irritation, eye discomfort and fatigue, highlighting the value of B2-rich foods like organ meats in maintaining vitality and healthy tissue function. Our Organic Grass Fed Beef Organs provide 18% of the NRV for B2
2.) Selenium for Antioxidant & Thyroid Support
Beef Kidney is a source of selenium, a trace mineral that protects against oxidative stress and supports thyroid hormone metabolism. Long-term studies show selenium supplementation improves thyroid hormone balance and reduces oxidative stress markers, while combined selenium and CoQ10 supplementation has been shown to enhance both thyroid and cardiovascular health. Our Organic Grass Fed Beef Organs provide 13% of the NRV for selenium.
3.) DAO for Histamine Metabolism
Kidney naturally contains the enzyme DAO, which helps break down histamine in the body. Studies demonstrate that kidney tissue is rich in DAO and that DAO supplementation can significantly reduce digestive, skin and cardiovascular symptoms linked to histamine intolerance. While eating whole-food sources of kidney isn’t a clinical intervention, it is a valuable natural source of this important enzyme.
Beef Organs: 5 Key Takeaways
- Nature’s Multivitamin: Organ meats like liver, heart and kidney deliver highly bioavailable vitamins and minerals like B12, copper and vitamin A, often in far higher amounts than muscle meats.
- Deep evolutionary roots: Humans have prized and consumed organs for millenia, with evidence showing early ancestors and modern hunter gatherers prioritised them for their dense nutrition and especially supporting women’s health, vitality and brain development.
- Beef Liver for Energy, Brain & Vision: Rich in heme iron, active B12 and retinol, Beef Liver supports blood health, neurological function and eye development.
- Beef Heart for Cardiovascular Support: Packed with CoQ10, zinc and taurine, Beef Kidney may promote heart health, cellular energy and nervous system resilience, offering a natural way to support mitochondrial and cardiovascular function.
- Beef Kidney for Thyroid & Histamine Balance: With B2, selenium and DAO, beef kidney may support metabolism, thyroid health and the breakdown of histamine, making it a potentially potent contributor to energy and overall wellbeing.