Testosterone is influenced by more than just training. Key nutrients like zinc, magnesium, selenium, vitamin D and omega-3s support hormone production, muscle mass, mood and metabolic health — especially when combined with enough protein and recovery.

Healthy Testosterone

Support strength, libido and long-term metabolic health

The sunshine vitamin for healthy bones, teeth and muscles

Often called the 'sunshine vitamin', Vitamin D is unique because your body creates it from sunlight. 
        It's essential for guiding calcium to where it's needed most, helping to keep your bones and muscles strong and healthy.

        During the darker autumn and winter months, or if you don't get much time outdoors, it can be tricky to get enough. That's when turning to food sources like oily fish, eggs, and fortified foods becomes a great way to top up your levels. For many, a simple daily supplement during these months is also a wise choice.

Vitamin D

Learn about vitamin D's key role in your health, the best food sources, and the daily amount to aim for.

Mackerel

Milk

Salmon

Supports sleep, mood and energy metabolism

Magnesium is one of the body's busiest minerals, acting as a crucial helper in over 300 biochemical reactions. This vital activity is essential for converting food into energy, supporting the smooth communication between your nerves and muscles, and helping to maintain strong, healthy bones.

        Because it plays a role in so many fundamental processes, the most effective way to ensure you're getting enough is through a consistently varied diet.

Magnesium

Learn about magnesium's key role in your health, the best food sources, and the daily amount to aim for.

The NIH provides specific magnesium RDAs for different life stages.

Almonds

Black beans

Pumpkin seeds

Spinach

Wholemeal bread

Powerful antioxidant for immune and thyroid health

Selenium is a trace mineral that acts as a powerful antioxidant, protecting your cells from daily stressors. It's also essential for a healthy immune response and helps regulate the hormones that manage your body's metabolism.

        While it's found in foods like fish, meat, and eggs, the most remarkable source is the Brazil nut. In fact, a couple of Brazil nuts can often contain more than your entire daily requirement, making them of nature's most potent nutritional packages.

Selenium

Learn about selenium's key role in your health, the best food sources, and the daily amount to aim for.

The NIH provides specific selenium RDAs for different life stages.

Brazil nuts

Chicken

Sunflower seeds

Tuna

A key mineral for a strong immune system and your body's natural repair process

Zinc is a fundamental mineral involved in the work of over 300 enzymes in your body. This vast range of activity is essential for supporting a robust immune system, healing wounds, and even maintaining your senses of taste and smell.

        While zinc is present in many foods, how your body absorbs it can differ. Animal sources like meat and shellfish provide zinc that is easily used by the body. Plant-based sources like legumes, nuts, and seeds are also excellent, but their zinc can be slightly less available for absorption due to naturally occurring compounds in the plants.

Zinc

Learn about zinc's key role in your health, the best food sources, and the daily amount to aim for.

The NIH provides specific zinc RDAs for different life stages.

Beef

Cashews

Cheese

Lentils

Long-chain omega-3 from fish; vital for brain and anti-inflammatory effects

While plant-based ALA is the starting point, EPA and DHA are the powerful, ready-to-use forms of omega-3, found almost exclusively in oily fish and other marine sources. They are vital for brain function and vision, and play a key role in helping to regulate your body's inflammatory response.

        Instead of a strict daily milligram target, the simplest and most effective strategy is to aim for two portions of fish per week, ensuring at least one of them is oily. For those who don't eat fish, a quality supplement providing around 450mg of combined EPA and DHA daily is an effective alternative.

Omega-3 (LC)

The British Heart Foundation advises eating two portions (= 140g each) of fish per week, one of which is oily, providing about 450 mg EPA + DHA per day.

The NIH provides more guidance on long-chain omega-3, for which there is no universally agreed RDA