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body and therefore have to be obtained through diet.
Consider the amino acid valine. Amino acids are the substances that make up the protein for every cell in our body. Our bodies use 22 amino acids. Nine of these cannot be synthesised within our bodies and must be supplied through diet. Valine is one of these essential amino acids. It is needed for muscle metabolism and tissue repair. Wholefood sources include brown rice, beans, beef, mushrooms, peanuts and soybeans.
Many nutrients in food work together to ensure the healthy functioning of our bodies. Eating food in its natural state ensures we benefit from these synergies. The amino acid tryptophan, for example, is the precursor to the “happy” hormone serotonin, but it needs B vitamins in order for it to be converted into serotonin.
Wholefoods are also rich in antioxidants, which neutralise free radicals. An overload of free radicals has been linked to problems such as heart disease.
A cup of fresh raspberries has more fibre than two slices of wholemeal bread and twice as much fibre as a medium apple.