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Oysters - These mollusks help strengthen your immune system and are rich in Omega 3, says Woman's Day.

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Green and black tea - According to Woman's Day these teas help avoid blockages forming in your arteries.

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Asparagus - Depression is associated with low levels of folic acid. According to Men’s Fitness, one portion of asparagus, equivalent to one cup, will give you two thirds of your recommended daily dose.

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Edamame beans - According to Healthline edamame beans are rich in protein, help keep your cholesterol levels down, don't increase your blood sugar levels and are crammed with vitamins and minerals.

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Brussels sprouts - Healthline cites some studies which show that antioxidants found in Brussels sprouts can help prevent certain types of cancer.

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Cauliflower - Organic Facts says that cauliflower contains tonnes of nutrients, as well as antioxidants which can help to prevent some cancers.

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Olives - This fruit contributes to reducing excess cholesterol in the blood, is rich in vitamin E, reduces the degenerative effects of diseases such as Alzheimer's, and helps boost fertility and the reproductive system, according to Health24.

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Blackberries - Blackberries contain more antioxidants than blueberries, strawberries and cranberries, says Woman's Day.

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Turkey breast - Turkey is rich in tryptophan, an amino acid which is extremely important, according to Men’s Fitness, for stimulating the production of serotonin. This chemical promotes feelings of calmness and serenity.

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Soy milk - According to Fit Day, soy milk is good for your blood vessels, helps you to lose weight and is strongly linked to the prevention of prostate cancer.

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Baked potato - Woman's Day states that a baked potato contains lots of potassium, which is good for your cardiovascular system.

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Walnuts - Eating seven walnuts a day will ensure that you're getting over double your recommended daily dose of alpha-Linolenic acid, according to Woman's Day. The Omega 3 acid is good for your memory and coordination.

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Acai - According to Food Matters, acai is packed with antioxidants. A study by the University of Florida showed that extract of acai applied directly onto cancer cells eliminated about 86% of them.

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Salmon - This fish is rich in quality proteins, vitamins, and minerals, including Omega 3, according to the BBC.

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Sweet potato - Half of a large sweet potato will give you 450% of your recommended daily dose of vitamin A, says Woman's Day.

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Bananas - This fruit contains key nutrients, as well as helping weight loss, the digestive system, and your heart health, says Healthline.

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Tomato sauce - Tomato sauce contains lycopene, a substance which keeps skin looking young and healthy. A Harvard study showed that women who had increased levels of lycopene in their blood stream reduced their risk of suffering a heart attack by 34%, reported Woman's Day.

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Shiitake mushrooms - Being rich in vitamin D, these mushrooms are good for your blood flow, preventing cancer, reducing stress and strengthening your immune system, according to Organic Facts.

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Lentils - Woman's Day claims that lentils are an excellent source of protein for those who don't eat meat.

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Greek yoghurt - This type of yogurt contains double the amount of protein found in regular yogurt, according to Woman's Day.

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Peanut butter - According to Prevention, peanut butter is rich in healthy fats and can help you lose weight as its combination of fiber and protein stops you from feeling so hungry.

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Scallops - Healthy Hubb recommends scallops as they are rich in Omega 3, vitamin B12 and antioxidants, a cocktail of nutrients which is great for your cardiovascular system.

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Chinese cabbage - Organic Facts says that eating this vegetable helps boost your immune system, prevents some chronic illnesses and strengthens your bones.

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Black beans - Black beans are rich in folic acid and magnesium, two nutrients which help prevent depression. The Journal of Active Disorder says that a diet rich in magnesium is associated with a lower risk of developing depression.

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Prunes - According to Healthline prunes are rich in boron, a mineral which helps build strong bones and muscles.

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Brazil nuts - Brazil nuts contain more selenium than any other food, says Woman's Day.

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Apples - Woman's Day says that apples contain quercetin, an antioxidant which helps reduce the risk of developing lung cancer.

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Linseed - Linseed is rich in Omega 3. It's great to mix with yogurt, cereals or oats, says Woman's Day.

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Kiwi - Woman's Day says Italian investigators discovered kiwis can help people with asthma to breathe better, owing to their high vitamin C content.

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Watercress - According to Organic Facts, watercress is also rich in vitamin C, and strongly linked to the prevention of breast and colon cancer. It also contain lots of calcium, which helps strengthen your bones.

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Eggs - Woman's Day says that each egg contains 6 g of protein and just 72 calories. Researchers from the Biomedical Research Center discovered that eating eggs for breakfast helps you lose weight.

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Sunflower seeds - Eating half a cup of sunflower seeds gives you half your recommended daily dose of vitamin E, which helps combat infections and boosts your heart health, according to Woman's Day.

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Strawberries - According to Organic Facts, strawberries contain antioxidants such as ellagic acid, flavonoids and phytochemicals which benefit your eyes. This fruit also boosts your immune system, and helps prevent some types of cancer.

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Avocado - According to Woman's Day, the healthy fat present in avocados keeps you feeling full and helps your body absorb other nutrients.

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Spinach - Eating half a cup of spinach gives you five times the recommended daily amount of vitamin K. This helps strengthen bones and improve blood circulation, according to Woman's Day.

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Grapes - Resveratrol, the substance responsible for cardiac benefits which is also found in red wine, is abundant in grapes, says Woman's Day.

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Oranges - Vitamin C is known to help reduce blood pressure and lower cortisol, the hormone which causes stress, according to Men’s Fitness.

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Sardines - This fish is rich in Omega 3 and is associated with improving your mood through its anti-inflammatory properties. According to a study published by the National Center for Biotechnology Information (NCBI), people who suffer from depression can see improvements after following a diet including Omega 3 supplements.

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Wholegrain rice - VegKitchen reports that this type of rice is rich in selenium, which aids in the prevention of heart diseases and cancer. It contains lots of fiber and antioxidants.

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