Most people are aware that a healthy diet is vital in order to reduce the risk of physical health problems. Recent evidence also suggests that good nutrition may be just as important for our mental health and that a number of conditions, including depression, may be influenced by dietary factors. Few positive changes can improve the one’s diet and prevents from the depression and improves mental health. It’s important to protect mental health through healthy eating. Changes to daily diet can help improve one’s mood.
1 – Regular meals throughout the day to maintain constant blood sugar
Make sure you eat at least three meals each day. Missing meals, especially breakfast, leads to low blood sugar and this causes low mood, irritability and fatigue. If you feel hungry between meals you may need to include a healthy snack e.g. fruit/nuts/cereals. breakfast is most necessary because at the morning our blood sugar becomes very low after the fast of whole night .breakfast , lunch, and dinner are the three meals which should be taken at a fixed time every day.
Sample meal pattern
Breakfast: ½ grapefruit / fruit juice Cereal e.g. wholegrain or bran cereal / porridge, with semi-skimmed milk Or 1-2 slices whole meal bread / toast with scraping of monounsaturated spread / butter, and kippers / egg/ grilled bacon /baked beans ,Tea / coffee / herbal tea / water
Midmorning: Tea / coffee / herbal tea / water, Fruit / nuts
Lunch: 1-2 slices whole meal or pitta bread sandwich with scraping of monounsaturated spread/butter and filling of fish / meat / egg / cheese / humus / meat substitute / nut butter, with salad Or jacket potato with baked beans / tuna and corn / chilli con carne / prawn filling, and salad Or soup e.g. pea and ham/ farmhouse broth, and bread Or salad with meat / fish / egg / cheese, and bread Or cooked meal, Fruit / yoghurt ,Tea / coffee / herbal tea / water
Mid Afternoon: Tea / coffee / herbal tea /water ,Fruit / fruit and nuts / mixed seeds
Dinner: 2tblsp Basmati or brown rice / whole meal chapattis / whole meal pasta / new potatoes / sweet potato / yam / couscous and 100-120g meat / fish / eggs or bean / lentil dish e.g. chilli con carne / rice and peas / dhal / stir-fried prawns and vegetables and 2 portions of green and root vegetables / large mixed salad Fresh / tinned fruit / baked fruit and low
fat crème fraiche / yoghurt Tea / coffee / herbal tea / water Supper Small bowl of cereal, as breakfast, or toast and yeast extract / nut butter / cheese
2 – Less refined high Sugary foods
These foods are absorbed quickly into the bloodstream (they may also be referred to as high glycaemic index foods).
This may cause an initial ‘high’ or surge of energy that soon wears off as the body increases its insulin production, leaving you feeling tired and low. Wholegrain cereals, pulses, fruit and vegetables are more filling and generally have a lower glycaemic index than processed foods. Because the sugar in these foods is absorbed more slowly it prevents mood swings. These foods are also nutritionally much better, containing thiamin (B1), a vitamin that has been associated with control of mood, and folate and zinc (supplements of these nutrients have been shown to improve the mood of depressed patients in a small number of studies).
Breads – select whole meal and granary types rather than white. Also try rye breads, pumpernickel, whole meal pitta bread, wholemeal chapattis, oat cakes, rice cakes and corn cakes.
Breakfast cereals – choose high fibre, low sugar types e.g. wholegrain or bran cereals or porridge.
Rice and pasta – choose Basmati and brown rice (this gives a nutty texture in salads). Use whole meal pasta.
Potatoes – serve boiled new potatoes in their skins (with a minimum amount of butter) or mashed or jacket potatoes. Potato wedges (lightly brushed with olive oil) are a lower fat alternative to chips and roast potatoes for those watching their weight. Try sweet potatoes or yams for a change – these are delicious baked and also have a low glycaemic index Aim to eat at least 5 portions of fruit and vegetables a day e.g. 1 glass of orange juice or ½ grapefruit for breakfast, a banana or apple for a mid morning snack, salad at lunch time and then two types of vegetable (a portion is roughly 2 serving spoons) and a pear or baked fruit at the evening meal.
Remember: Green vegetables should be cooked in a small amount of pre-boiled water, and should not be over cooked or you will lose much of the vitamin content. Avoid sugar and sugary drinks, cakes, sweets and puddings. These are loaded with calories but have little nutritional value and may trigger a mood swing.
3 – Protein at each meal to ensure a continuous supply of the amino acid tryptophan to the brain
We all need to eat enough protein to maintain our skin, organ, muscle and immune function but recent research suggests that one particular component of protein, the amino acid tryptophan, is important in its effect on the brain, where it influences mood. Supplements of tryptophan were tested in studies and in some were shown to improve the mood of depressed individuals. However, the supplements were not considered safe and were removed from the market. However, you can ensure your brain gets a regular supply of tryptophan by including at least one good sized portion of protein at each meal i.e. meat, fish, eggs, milk, cheese, nuts, beans, lentils (dhal), or a meat substitute such as textured vegetable protein or mycoprotein. Remember Peanuts are low in tryptophan so if you eat them at a meal-time include another source of protein (e.g. other nuts) at the same time.
4 – Wide variety of foods to ensure all the micronutrients obtained.
The more varied your diet, the more likely you are to obtain all the nutrients you need. If you have bread at one meal, try cereal or potatoes, rice or sweet potatoes at the others. Make sure you include at least two portions of different fruits and/or vegetables and a protein food at each meal. Include some red meat and fish, as they are good sources of vitamin B12, another nutrient that seems to be associated with the control of mood. If you are vegetarian or have a limited budget, include fortified soy mince and yeast extract to increase your intake of this vitamin.
If you don’t like fish you may wish to try an omega -3 supplement (choose one that is purified, contains no vitamin A and has a high eicosapenanoic acid (EPA) content – take no more than 1g EPA per day).
If you are vegetarian, try a flax seed supplement (however, only a very small fraction of the omega 3 contained in plant products can be used by the body).
5 – Fish, especially oily fish, in diet
A few studies suggest that supplements of omega-3 oils may reduce symptoms in patients with depression on antidepressant medications. These studies are small but we know that a proper balance of omega -3 and omega- 6 oils in the diet is important. It has been suggested that many of the modern inflammatory diseases may be due to an imbalance between the two. In order to improve the balance:
* include more omega 3 rich oily fish in the diet from sustainable fish stocks
* between 2-4 portions weekly for most adults (but no more than 2 portions if you are pregnant or breastfeeding). If buying tinned fish, choose varieties in water, brine or tomato sauce rather than in sunflower oil (high in omega 6).
* if you fry food (e.g. stir-fries) use an oil high in mono-unsaturates e.g. olive or rapeseed oil.
*choose a monounsaturated margarine or butter for spreading. Avoid margarines or low fat spreads containing omega 6 polyunsaturated or hydrogenated trans fats (trans fats are damaging to your brain and arteries).
* avoid processed foods such as pies, sausage rolls, crisps and cakes that are high in saturated and trans fats.
6 – Maintain a healthy weight
Depression affects different people in different ways. Some people lose interest in food or can’t be bothered to shop and cook, so lose weight. Others find they want to eat more when they are unhappy and gain weight. Anti-depressants can also significantly increase or decrease your appetite – if you are concerned that the medication you are taking has made your problems worse, speak to your doctor. Both excessive weight loss or weight gain can make your mood worse and should be avoided. Weight loss and lack of good nutrition will deprive the brain of glucose and the other
nutrients that control mood – you may need the advice of a dietitian to help you overcome this problem. Putting on weight unintentionally or feeling out of control of your eating can increase your depression and can lead to yo-yo dieting which leaves you further out of control. If you are overweight, follow the advice in previous sections but be extra careful to limit your fat and sugar intake (no fries, pies, cakes, puddings, sweets, chocolate or sweet drinks), use less fat in cooking, reduce your alcohol consumption and increase your exercise levels.
7 – Maintain adequate fluid intake
There may be significant implications on mental health if not taking the adequate liquids i.e. water. The early effects of even mild dehydration can affect our feelings and performance, often characterized by restless or irritable behavior. During an average day an adult’s body loses approximately 2.5 litres of water through the lungs as water vapour, through the skin as perspiration or through the kidneys as urine. If sufficient fluids are not consumed to replace this loss then the symptoms of inadequate hydration can appear, including increased irritability, loss of concentration and reduced efficiency in mental tasks. Coffee, colas, some energy drinks and tea all contain caffeine, which some people use to boost energy levels. However, evidence suggests that in large quantities caffeine can increase blood pressure, anxiety, depressive symptoms and sleep problems. Caffeine also has a diuretic effect in the body that encourages the production of urine and therefore the release of fluids. For this reason you should not rely solely on caffeine based fluids. If you do choose to use caffeinated drinks it is advisable to limit caffeine intake to the equivalent of no more than 3-4 cups of coffee per day and to drink other fluids such as water, fruit juice and non-stimulant herbal teas at other times.
Remember chocolate also contains caffeine and should be limited to an occasional treat.
8 – Limit of alcohol intake
Alcohol has a depressant effect on the brain so can result in a rapid worsening of your mood. It is also a toxin that has to be deactivated by the liver. During this detoxification process the body uses thiamin, zinc and other nutrients and this can deplete your reserves, especially if your diet is poor. Thiamin and other vitamin deficiencies are common in heavy drinkers and these deficits can cause low mood, irritability and/or aggressive behavior as well as more serious and long-term mental health problems. Because the body uses important nutrients to manage the processing of alcohol, people who experience depression should consider abstaining from alcohol use until they have recovered. Even then, because of alcohol’s depressant effects they should consider drinking only small amounts, perhaps no more than once a week. If you do wish to drink alcohol it is important not to exceed the recommended safe limits i.e. 14 units for women and 21 units for men per week.
9 –Regular exercise
Exercise leads to the release of endorphins (chemicals that help us to relax and to feel happy). Exercise is particularly important for those with depression as it also gives structure and purpose to the day. Outdoor exercise that exposes us to sunlight is especially valuable as it affects the pineal gland, directly boosting mood. If you are trying to control your weight, exercise has some other advantages too. For example, the more you exercise, the less you need to cut down on your calorie intake to control your weight. It is also beneficial for heart health and it ensures that as fat is lost muscle is still retained, resulting in a more toned body. Exercise also prevents the loss in bone mass and increased risk of osteoporosis that can occur with dieting in the absence of exercise.
There is no need to join a gym – walking is the easiest and best form of exercise and it can be built up as your fitness level increases. Swimming is good for those who have joint problems and find it difficult to weight-bear and cycling is a good way of travelling to work. Whatever kind of exercise you choose, try to start with 20 minutes at least three times a week and increase as your fitness improves.
10 – Nutritional supplements
At the moment the evidence is not strong regarding the benefits of nutritional supplements but if you decide to try them consider:
*choosing a complete 1-a-day multivitamin/mineral preparation containing the full recommended daily intake of each vitamin and mineral. These products are relatively safe as they do not contain excessive amounts of any single nutrient (but you should avoid other supplements containing these nutrients, in particular vitamin A as it is toxic in high doses).
* if your doctor prescribes vitamins or minerals for you make him/her aware of the products you are already taking.
*if you do take a multivitamin supplement, avoid liver and other of fat products, such as pate, as these are also high in vitamin A.
* it is important to remember that supplements are not an alternative to a healthy diet and you should still maintain a varied and balanced diet.
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