March 19, 2026 – A European Commission report estimates that about 70% of Europeans are at risk of micronutrient deficiency or “hidden hunger.” Essential vitamins and minerals are vital for biochemical processes; their deficiency can lead to diseases such as cancer, infections, and autoimmune conditions. Hidden hunger, used by the UN and EC, refers to the often imperceptible lack of these nutrients in our food, which subtly affects human health, unlike macronutrient deficiency. This issue is often overlooked in a food industry focused on high quantity over quality. Instead of just protein or calories, we should consider more nuanced health metrics aligned with high-quality nutrition, using diets as benchmarks to understand what it takes to provide these to populations.
A Holistic Approach to Sustainable Nutrition
The Livewell Diet by WWF breaks down an optimal diet into seven food groups: fruit, vegetables, meat, fish, dairy, nuts/legumes, and starchy carbs, considering macro- and micronutrients, as well as constraints, such as carbon emissions, land, water health, and socioeconomic factors, aligning with sustainable nutrition trends. Policymakers often fortify cereals to fix nutrient gaps and address micronutrient deficiency, recognizing nutrition involves more than just fats, proteins, and carbs. While helpful, this approach oversimplifies complex systemic issues in human nutrition and agroecology. How does intensive agriculture contribute to global biodiversity loss?
We can’t solve problems with the same mindset that created them. Instead of reinforcing poor agricultural products, we should question why these systems fail to provide full micronutrient profiles, addressing micronutrient deficiency. Understanding these issues allows us to improve land management and the food sectors connected to human health. About one-third of the world’s food comes from smallholdings, which cover less than 2 hectares. These farms use little industrial technology and require a lot of labor. Many are in less developed countries, where small farms are common. In more developed nations, larger farms usually have less crop diversity and less varied land management. On about three-quarters of agricultural land, increased land concentration and mechanization have led to uniform practices, which in turn reduce biodiversity and the diversity of soil microbiomes.
What are the Benefits of Agroforestry Systems for Food Quality?
Current crop and pasture production is the largest cause of global biodiversity loss. In the UK and EU, intensive farming leads to declines in plant, animal, and fungal species, along with soil compaction, erosion, and a loss of soil microbiota diversity. This approach also reduces pollinators and native insects, causes rivers to become nutrient-rich, harms aquatic ecosystems, and pollutes water with chemicals and sediment. This is largely due to the focus on the dairy, cereal, and meat industries in the UK. The EU and UK produce about 500% of their dairy and meat needs but struggle to meet the recommended intake of fruits and vegetables. These industries receive significant subsidies and favor large single ownership, which often damages the landscape. Some efforts to mitigate these issues exist through grants like the UK’s Countryside Stewardship. However, UK land has already lost 50% of its species in the last 50 years, making it one of the regions with the least biodiversity.
Regenerative Food Systems: Flora, Fauna & Fungi
Diverse regenerative food systems help the land and health by supporting ecological processes and nutrient cycling. They provide essential nutrients for humans and align with current nutrition trends. This approach tackles poor farming practices and nutritional gaps. Studies show that growing cereals on one hectare can feed 21 people with 23 macro- and micronutrients. In contrast, growing roots, tubers, and vegetables on the same land can support nearly twice as many people. This diversity boosts nutrient absorption and yields. Similar efficiency measures apply to agroforestry systems.
Agroforestry Systems: A More Sustainable Way
Agroforestry systems serve many purposes. They involve different plant and tree species grown together to make the best use of land, soil, and water resources. These systems also provide various ecosystem services and products. In the UK, agriculture occupies 70% of the land, primarily for cereals and pasture. This use covers 90% of farmland and supports just three main food groups in the Livewell Diet. Europe largely follows this sustainable nutrition trend, with agriculture covering 40% of land and forestry accounting for over 30%. In the UK, tree cover is only 10-13%.
How can Planting Trees Enhance Soil Fertility and Nutrient Cycling?
Adding trees improves soil fertility by supporting biogeochemical processes and nutrient cycling. Nitrogen-fixing species, such as those with Frankia bacteria, turn atmospheric nitrogen into forms that plants can use. This reduces the need for energy-intensive synthetic nitrogen production. Using synthetic nitrogen can harm mycorrhizal fungi, breaking their partnership with plants and weakening soil health. When plants no longer need fungi for nitrogen uptake, they depend on constant synthetic inputs.
How Can Agroforestry Contribute to Sustainable Nutrition in the UK?
The UK is home to a temperate forest ecosystem. Most landscapes, whether wetland, lowland, or upland, will gradually become a temperate forest over time. These forests are made up of various trees and shrubs that create multiple layers. They host different plants, lichens, mosses, fungi, invertebrates, birds, and mammals in a lively ecological environment. The richness and strength of these ecosystems depend on their age and size, with older and larger forests being more diverse, interconnected, and resilient. Agroforestry systems can grow a range of foods, protect soil, reduce water loss, and help pollinators, unlike industrial farming. Some examples include silvo-arable, silvo-pasture, and silvo-horticulture systems. Forests provide biodiversity, habitat, carbon storage, water, food, medicine, raw materials, soil creation, flood control, climate regulation, water and air purification, pollination, education, recreation, spirituality, and beauty.
Traditional Silvo-Pasture Systems: Improving Land Use and Livestock Nutrition
Traditional silvo-pasture includes systems resembling parkland, where large, mature trees are spaced apart. This spacing allows shade-tolerant grasses and flowers to grow in the gaps. These wood pastures show how traditional agroforestry supports current land use. They combine livestock grazing with trees that can produce fruit, nuts, or medicinal products. This approach reduces dependence on high-yield, often harmful, single-product farming, and it improves both ecological and economic stability. Food industry professionals should note that providing livestock with a mix of trees, shrubs, and ground plants enhances their intake of macro- and micronutrients. This change leads to better health outcomes, fewer parasites, increased weight, and higher blood nutrient levels.
The Benefits of Tree Shade on Agriculture and Livestock
Tree shade can lower herbaceous biomass but increase biodiversity, soil fertility, and crude protein, supporting nutrition trends. With climate change, shade will be essential for agriculture. Heat stress for UK cattle could increase by over 1,000% in the next 30 to 50 years. Shade also saves water, improves local hydrology, and encourages rainwater infiltration and aquifer recharge. Grass-fed livestock is common; however, animals that eat tree fodder are healthier, more resilient, and contribute to nutrition trends.
Promoting Sustainable Land Management and Agroforestry Benefits
Practitioners need to move past common, unsustainable practices and find farmers who follow high land management standards. They should use methods that protect landscapes and improve food quality. This is particularly important for livestock, which makes up 70% of UK agricultural land. Any changes in practice could have significant effects. Agroforestry systems provide many benefits for crops like fruits, nuts, vegetables, and mushrooms. These crops are often grown together and serve multiple purposes. Adding fruit and nut trees introduces more food groups and micronutrients that are often missing from diets, like legumes, nuts, and fruits. Planting trees also helps ecosystems by improving soil health, water management, ecology, and the cultural value of the landscape.
This article is based on Innova’s Sustainable Nutrition: How Agroforestry Can Help Feed the World report. This report is available to purchase or with an Innova Reports subscription. Reach out to learn more.