Food author Jessica Sepel said that anyone who ever has told you that your gut is the key to good health is right - because it is where 70 to 80 per cent of the immune system lies.
Eat real food
This might sound obvious, but it's something many of us fail to do.
Jessica recommends you stick to 'good quality proteins, healthy fats, plenty of greens, veggies, nuts, seeds and pulses'.
She said you should ideally eliminate processed, packaged and convenience foods, and rid your diet of artificial sweeteners which promote breakouts.
Optimise digestive enzymes
Next, she said you should think about the levels of hydrochloric acid in the stomach, which helps to break down food, thereby aiding digestion.
'I recommend sipping on two litres of water with a dash of apple cider vinegar throughout the day,' Jessica said.
Supplement as much as possible
Supplements are extremely useful for supporting good gut function.
Jessica said a probiotic is a great idea for aiding digestion, while her own Skin and Digestion tablets are also useful.
Eat probiotic-rich foods
As well as taking a daily probiotic, Jessica recommends you eat as many probiotic-rich foods as possible.
Fermented foods like kombucha, sauerkraut and kefir work especially well here.
All of these items will also help to reduce inflammation and enhance your metabolism.
Water is critical for good skin health, and two litres is the optimum amount.
Jess said you can bulk this out by way of herbal teas and putting apple cider vinegar into your bottle to sip throughout the day.
Eat healthy fats
While you might shy away from fats in your diet, our skin loves good quality healthy fats and foods that are rich in omega-3 and omega-6 fatty acids.
'Foods such as oily fish, chia seeds, flaxseeds, walnuts, eggs and olive oil have fatty acids that nourish the skin and are important for a radiant, soft complexion,' Jessica said.