Category: Nutrients

Food to boost your mood

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by London Nutritionist Sylvia Hensher

Can you alter your mood through your food?

Many people are seeking to take control of their mental health using self-help, and to find approaches to help reduce the need for, or to use alongside prescribed medication. One self-help strategy is to make changes to what we eat, and there is a growing interest in how food and nutrition can affect emotional and mental health. We don’t have the whole story yet, but there are some interesting clues. Food appears to affect our mood by bringing about chemical and physiological changes in our brain structure.

A survey in the UK (1) of 200 people found that 88% of participants reported that dietary changes improved their mental health significantly: 26% said they had seen large improvements in mood swings, 26% in panic attacks, 24% in cravings, 24% in depression, 22% in irritable/aggressive feelings, 19% in concentration/memory difficulties. People also said that cutting down on food “stressors” and increasing the amount of “supporters” they eat had a beneficial effect on their mood. Stressors highlighted included sugar (80%), caffeine (79%), alcohol (55%), chocolate (53%), wheat-containing foods (48%), additives (47%) and dairy (44%). Mood supporters included water (80%), vegetables (78%), fruit (72%), oily fish (52%), nuts and seeds (51%), ‘brown’ (wholegrain) food (50%), fibre (48%) and protein (41%).

In addition, Mind, a charity which helps people take control of their mental health, has received numerous reports of improvements in a wide range of mental health problems by people making dietary changes, including: mood swings, anxiety, panic attacks, cravings or food ‘addictions’, depression (including postnatal depression), irritable or aggressive feelings, concentration, memory difficulties, premenstrual syndrome (PMS), obsessive-compulsive feelings, eating disorders, psychotic episodes, insomnia, fatigue, behavioural and learning disorders, and seasonal affective disorder (SAD) (2).

Which foods can negatively affect mood?

The foods and drinks that most often cause problems are those containing alcohol, sugar, caffeine, chocolate, wheat (such as bread, biscuits, and cakes), dairy products (such as cheese), certain artificial additives (or E numbers) and hydrogenated fats. Other commonly eaten foods, such as yeast, corn, eggs, oranges, soya and tomatoes may also cause symptoms for some people. A qualified nutritionist can help identify suspect culprits.

How can your food boost your mood?

1. Don’t avoid carbohydrates, but choose the right ones-The connection between carbohydrates and mood is all about tryptophan, a non-essential amino acid. As more tryptophan enters the brain, more serotonin is synthesised in the brain, and mood tends to improve (3). Serotonin, known as a mood regulator, is made naturally in the brain from tryptophan with some help from B vitamins. Foods thought to increase serotonin levels in the brain include fish and vitamin D.

There’s a catch though: while tryptophan is found in almost all protein-rich foods, other amino acids are better at passing from the bloodstream into the brain. Thus, by eating more carbohydrates you can help boost your tryptophan levels; carbohydrates seem to help eliminate the competition for tryptophan, so more of it can enter the brain and help boost your mood. However, it’s important to make good carbohydrate choices like whole grains, fruits, vegetables, and legumes, which also support positive mood in other ways by helping to stabilise blood sugar levels and contributing important nutrients and fibre (4).

2. Eat More Omega-3 Fatty Acids-your brain is 60 % fat if you take out all the water. This fatty tissue needs replenishing, but you need to know which fats will nourish your brain the best. Essential fatty acids known as Omega-3 and Omega-6 are intimately involved in brain function and deficiencies or imbalances in brain fats are now known to be associated with numerous mental health problems.

In particular, researchers have noted that omega-3 polyunsaturated fatty acids (found in oily fish, flaxseed, and walnuts) may help protect against depression. This makes sense physiologically, since omega-3s appear to affect neurotransmitter pathways in the brain. Past studies have suggested there may be abnormal metabolism of omega-3 in depression, although some more recent studies have suggested this association may not be as strong as previously thought. Aim for two to three servings of fish per week, of which at least 1 should be oily (5).

Some common symptoms of omega-3 deficiency or omega-3: omega-6 imbalance include:

  • Excessive thirst
  • Chronic fatigue
  • Dry or rough skin
  • Dry hair, loss of hair or dandruff
  • Premenstrual syndrome (PMS) or breast pain
  • Eczema, asthma or joint aches
  • Dyslexia or learning difficulties
  • Hyperactivity
  • Depression or manic depression
  • Schizophrenia

The best foods to feed your brain are:

  • Omega-3: flax seeds (linseeds), hemp seeds, pumpkin seeds, walnuts, salmon, mackerel, herring, sardines, anchovies, eggs.
  • Omega-6: sunflower seeds, sesame seeds, pumpkin seeds.

3. Eat a Balanced Breakfast- eating breakfast regularly can lead to improved mood, along with better memory, more energy throughout the day, and feelings of calmness (6). It seems sensible then to reason that skipping breakfast would do the opposite, leading to irritability, anxiety and fatigue.  So what should you be eating for a good breakfast? Lots of fibre from whole grains, nuts or seeds, as well as legumes (such as baked beans), some lean protein, omega-3 and/or omega-6 fats

4. Follow a Mediterranean Diet– the Mediterranean diet is a balanced, healthy eating pattern that includes plenty of fruits, nuts, vegetables, cereals, legumes, and fish — all of which are important sources of nutrients linked to preventing depression.

In particular, the low levels of the B vitamins folate and B12 status have been found in studies of depressive patients, and an association between depression and low levels of the two vitamins is found in studies of the general population (7). These B vitamins help to control “methylation”, a chemical process which goes on throughout the brain and body and helps to turn one neurotransmitter into another.  The brain uses these neurotransmitters to communicate, sending messages from one brain cell to another. Folate is found in Mediterranean diet staples like legumes, nuts, many fruits, and particularly dark green vegetables. B-12 can be found in all lean and low-fat animal products, such as fish and low-fat dairy products.

5. Balance your blood sugar levels- The most common underlying imbalance in many types of mood disorders is fluctuating blood sugar levels. The negative effects of imbalanced blood sugar levels include irritability, poor concentration, fatigue, depression and food cravings- especially for sweet foods or stimulants such as tea, coffee and cigarettes, all of which in turn send your blood sugar levels on a roller coaster. Here are the most common symptoms of blood sugar imbalances:

  • Difficulty concentrating
  • Heart palpitations
  • Fainting, dizziness or trembling
  • Excessive sweating or night sweats
  • Excessive thirst
  • Chronic fatigue
  • Frequent mood swings
  • Forgetfulness or confusion
  • Tendency to depression
  • Anxiety and irritability
  • Feeling weak
  • Aggressive outbursts or crying spells
  • Cravings for sweets or stimulants
  • Drowsiness after meals

A few simple steps you can take to help balance your blood sugar: Continue reading “Food to boost your mood” →

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Energise Your Diet

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by London Nutritionist Sylvia Hensher

One of the most common causes of visiting a healthcare practitioner is the complaint of fatigue. There are different kinds of fatigue. It may be constant, beginning in the morning after a full night’s sleep or it may build up throughout the day. Your nutritional status can and does play a major role in the prevention and treatment of fatigue.  Here are some factors to consider when trying maximising your energy levels throughout the day.

Nutritional causes of low energy

  • Eating refined carbohydrates and sugars: these are found in white bread, rice and pasta, cakes, honey, jam, soda drinks, sweets. These foods are digested quickly and therefore rapidly release sugar (glucose), the main source of fuel for our cells, into the bloodstream. This provokes the release of excess insulin, a hormone which controls blood sugar levels by stimulating cells to take up glucose, as excess glucose is toxic to tissues. Excessive amounts of insulin remove excessive amounts of sugar from the blood, which results in low blood sugar; this can reduce the glucose supply to cells which depend on glucose for energy and therefore reduce our energy levels.
  • Food sensitivities: allergenic foods can act as a stressor on the body and lead to low blood sugar so that cells lack enough sugar (glucose) for optimal functioning, making you feel tired.
  • Nutrient deficiencies such as B and C vitamins, iron, magnesium, zinc and copper which are needed for energy production can lead to low energy
  • Stimulants such as coffee, chocolate and nicotine increase levels of the stress hormones cortisol and adrenaline (1) which sharply spike up blood sugar levels. This causes the release of large amounts of insulin to remove the excess sugar which is not used by the body and subsequently leads to an energy slump.
  • Dehydration– every cell in your body needs water for a myriad of chemical reactions, including the burning of glucose and the breakdown of fat for energy production.

Other causes of low energy

  • Stress leads to a sugar imbalance because it triggers the release of hormones such as adrenaline and cortisol which increase blood sugar levels. This stimulates the release large amounts of the hormone insulin, which removes the excess glucose from the blood, leading to low blood sugar and insufficient energy supply to our cells
  • Anaemia–this refers to a condition in which the blood is deficient in red blood cells or the haemoglobin (iron-containing) portion of red blood cells. The function of red blood cells is to transport oxygen from the lungs to the tissues of the body and help turn fats, carbohydrates and proteins into energy. Thus a lack of red blood cells reduces the amount of oxygen being delivered to tissues and thus energy levels. Iron, vitamins B12 and folic acid are needed to make properly functioning red blood cells, and anaemia may be caused by a shortage of these nutrients.  These nutrient deficiencies may be due to a poor diet, heavy menstrual bleeding, pregnancy or poor nutrient absorption as found in coeliac disease and Crohn’s disease.
  • Poor adrenal functioning-the adrenal glands sit on top of the kidneys and The adrenal glands are situated on top of the kidneys and one of their main jobs is to release hormones which help the body maintain a state of alertness as well as help raise  blood sugar levels when they are low. If the adrenal glands are overworked due to constant uninterrupted stress and poor nutrition, their ability to produce hormones which help maintain steady blood sugar levels can become compromised.
  • Poor thyroid functioning– The thyroid controls energy production, so an underactive thyroid can result in reduced energy production, making us feel tired..

Optimising your energy levels through nutrition and lifestyle Continue reading “Energise Your Diet” →

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Antioxidants and Safe Suntanning

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by London Nutritionist Sylvia Hensher

How Antioxidants and Vitamins Can Help Prevent Sunburn

The amount of antioxidants that you have in your skin plays a major role in your development of sunburn. The more antioxidants you consume, the lower your risk of sunburn. Studies on UVA and UVB sunlight have taught us that our cells essentially “shut down” when the damage caused by sunlight becomes too great. When certain kinds of skin cells (called keratinocytes) are overexposed to UVA and/or UVB sunlight, they experience one particular type of stress called oxidative stress which can overload our antioxidant levels. Damage to our DNA is also part of what happens in sunburn cell formation. Foods containing effective antioxidants to boost your “internal sunscreen” include:

  • Goji berries (not the juice)
  • Raspberries
  • Blackberries
  • Blueberries
  • Green tea
  • foods rich in the carotenoids lutein and zeaxanthin ,including dark green leafy vegetables, kale, spinach, broccoli, corn, peas, Brussels sprouts, and romaine lettuce
  • vitamin C rich foods such as bell peppers, broccoli, papaya, Brussels sprouts, and strawberries
  • selenium rich foods such as mushrooms and different types of fish, including cod, pawns, tuna, snapper, halibut, and salmon
  • vitamin E rich foods such as sunflower seeds, almonds, olives, and dark green leafy vegetables

Safe Tanning Guidelines

If your skin is unused to the sun, it is important to build up your tolerance regularly and gradually. To start with, limit your exposure to 10 minutes a day, then progressively increase your time in the sun so that you can have normal sun exposure with little risk of skin cancer.

Time of Day – Early morning is the best time to sunbathe if you have not already built up a base tan, because you’re less likely to burn in the mild morning sun than later in the day.

Regular Intervals – Regular sunbathing is extremely important; you can’t cram all of your sun exposure into a two or three week vacation period and expect to experience the benefits. Intermittent overexposure can increase the danger of skin cancer. Thus, frequent, short periods of exposure are best.

Skin Exposure– For optimal benefit, strive to have at least 40 percent of your skin uncovered.

Optimal Exposure Time – A light-skinned person fairly far from the equator (such as in the UK or the northern U.S.) needs at least three 20 minute sessions per week, in bright midday sunlight and with few clothes. Longer will be needed if sunbathing occurs at off-peak times for ultraviolet light (before 12 PM or after 3 PM) or at the beginning or end of the summer (April or September).  A dark-skinned person, of course, should be outside significantly longer.

Call us now on 0207 724 4445 /07812 163 324 or email us at info@yournutritionalhealth.co.uk to find out more about you can use antioxidants to optimise your long-term health!

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The Vitamin D Epidemic

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By London Nutritionist Sylvia Hensher

How Vitamin D Deficient Is The UK?

A recent survey in the UK showed that more than half of the adult population in the UK has insufficient levels of vitamin D. In the winter and spring about 1 in 6 people has a severe deficiency. It is estimated that about 9 in 10 adults of South Asian origin may be vitamin D-deficient. Most affected people either don’t have any symptoms, or have vague aches and pains, and are unaware of the problem.

Why Do Your Vitamin D Levels Matter?

In addition to the well-known osteoporosis connection, deficiency of this fat-soluble vitamin can be linked to a wide range of health problems, from cancer and cardiovascular disease to cognitive impairment and problems with auto-immunity such as multiple sclerosis and type 1 diabetes. Huge increased research interest in this field is constantly bringing to light new evidence which underscores the enormous importance of vitamin D to human health.

Sources of Vitamin D

What many people don’t realise is that very few foods naturally contain vitamin D. Fortified milk, egg yolks and oily fish are the best sources, but we can’t rely on food to provide with optimal amounts of vitamin D on a daily basis. In fact, the major source (80 – 100%) of vitamin D is actually sunshine. Ultraviolet B (UVB) sunlight rays convert cholesterol in the skin into vitamin D.

That’s right, although cholesterol is often a much maligned substance, our bodies literally could not survive without it! The sunlight has to fall directly on to bare skin (through a window is not enough). To add to the complexity of this issue, age, skin colour, geographic latitude, seasonal variations in sunlight availability and sunscreen use can impact on your body’s ability to produce all the vitamin D it needs. For example, darker skins need more sun to get the same amount of vitamin D as a fair-skinned person and because of geographic location, people in the United Kingdom cannot synthesise vitamin D from November to the end of March.

Why the Vitamin D Epidemic? Continue reading “The Vitamin D Epidemic” →

Digiprove sealCopyright secured by Digiprove © 2011 Sylvia Salvendy