Weight Management & Nutrition | yournutritionalhealth.co.uk

Food Allergies & Sensitivities

Posted on May 16, 2011December 7, 2011 by admin

By London Nutritionist Sylvia Hensher

Different Types Of Food Reactions

Type 1 Immune Reactions

The best known and well-studied form of food allergies is called a Type 1 immune reaction, also known as a classical food allergy. Type 1 food allergies occur in approximately only 2-5% of the population, mostly in children and are less frequent in adults. The reaction is immediate, usually appearing 15 – 30 minutes from the time of exposure to the offending food substance. Usually occurring in people who are genetically predisposed, the immune system begins creating a specific type of antibody called Immunoglobulin E (IgE) to certain foods. One side of the IgE antibody will recognise and bind to the allergic food. The other side of the antibody is attached to a specialised immune cell called a mast cell which is packed with histamine. Histamine is one of the chemicals that is released in the body as part of an allergic reaction, and which causes the itching, sneezing, wheezing, and swelling typical of allergic symptoms. Primed for action, the IgE antibody now patiently waits for re-exposure to food allergens.

So, when you eat the allergic food the next time, IgE antibodies hungrily latch onto the food. Instantaneously, histamine and other allergy-related chemicals are released from the mast cell, quickly bringing on the unwelcome symptoms of stomach cramping, diarrhoea, skin rashes, hives, swelling, wheezing or the most dreaded of all Type 1 reactions, anaphylaxis. Anaphylaxis is a severe, potentially life-threatening allergic reaction which causes your blood pressure to drop suddenly and your airways to narrow, blocking normal breathing. It requires immediate emergency medical attention.

Clinical approach: In Type 1 food reactions, offending foods are completely avoided and nutritional immune and digestive support provided.

Type 3 immune reactions

Type 3 immune reactions are much more commonly involved in food sensitivities than Type 1 reactions. In fact, 45-60% of the population has been reported as having delayed food allergies. A delayed food sensitivity also involves the immune system and occurs when your immune system creates an overabundance of antibody Immunoglobulin G (IgG) to a specific food. The IgG antibodies, instead of attaching to Mast cells, like IgE antibodies in Type 1 allergies, bind directly to the food as it enters the bloodstream, forming food allergens bound to antibodies circulating in the bloodstream. The allergic symptoms in Type 3 immune reactions are delayed in onset – appearing anywhere from a couple of hours to several days after consuming allergic foods. This delayed onset makes pinpointing the culprit food difficult. In this instance, laboratory testing may be useful.

Delayed food reactions may occur in any organ or tissue in the body and have been linked to over 100 allergic symptoms and well over 150 different medical diseases.

Clinical approach: In Type 3 immune reactions, it is important to identify food triggers, either through food exclusion tests or laboratory testing (more on this below).Depending on the symptoms, these foods are then excluded for a period of time, and then reintroduced on a rotational diet to avoid retriggering symptoms. In addition, nutritional immune and digestive support is provided.

Why Has the Incidence of Food Sensitivities Risen? Continue reading “Food Allergies & Sensitivities” →

Nutritional Support for a Healthy Weight & Thyroid

Posted on April 30, 2011December 7, 2011 by admin

PART 2

by London nutritionist Sylvia Hensher

Hi again! In part 1 of this series on the thyroid we talked about what the thyroid is, how it might be affecting your weight, symptoms of an underactive thyroid and a simple test you can do at home to give you an indication, but no firm diagnosis, as to how well your thyroid is functioning.

In this 2^nd part of the series, we’ll look at how you can support optimal thyroid functioning, and therefore optimal weight management, through nutrition.

Foods to help support optimal thyroid functioning

1. Iodine is required to manufacture the thyroid hormones. Without sufficient iodine, your thyroid cannot produce adequate thyroid hormones to help your body function on an optimal level. Seafoods, iodised salt and sea vegetables such as kelp, as well as foods grown in iodine rich soil, are rich sources of iodine. It should be noted, however, that too much iodine can actually trigger thyroid problems and worsen symptoms, so it’s important to have a healthy balance.

2. Zinc is another essential mineral for optimising thyroid health.

3. Selenium: This mineral is critical for the proper functioning of your thyroid gland, and is used to produce and regulate the active T3 hormone. Selenium can be found in foods such as shrimp, snapper, tuna, cod, halibut, calf’s liver, button and shitake mushrooms and Brazil nuts.

4. Zinc, Iron and Copper are needed in trace amounts for your healthy thyroid function. Low levels of zinc have been linked to low levels of TSH, whereas iron deficiency has been linked to decreased thyroid efficiency. Copper is also necessary for the production of thyroid hormones. Seafood, whole grains, green leafy vegetables, nuts and seeds can help provide these trace metals in your diet.

5. B vitamins help to manufacture thyroid hormones and play an important role in healthy thyroid function. They are found in whole grains, pulses and green leafy vegetables. Continue reading “Nutritional Support for a Healthy Weight & Thyroid” →

Is Your Thyroid Sabotaging Weight Loss?

Posted on April 11, 2011December 7, 2011 by admin

Part 1

By London nutritionist Sylvia Hensher

Have you tried every diet known to man, really watch what and how much you eat, exercise regularly and find that you STILL CAN’T LOSE THE WEIGHT???!! Well, here’s some good news. Research is pointing to the fact that an underactive thyroid might be the number one cause of weight problems, especially among women.

So what is the thyroid and how might it be affecting your weight? Well, the thyroid gland is a small butterfly shaped gland with two lobes found just in front of your neck below the Adams Apple. One of its main functions is to control metabolism- that is, the rate at which we burn calories to maintain vital functions. Our bodies need fuel just as a car needs fuel to power itself, so whether we are sleeping, shopping or exercising, we are constantly burning calories.

Now, your thyroid gland produces two main hormones. One is called thyroxine (T4) and the other is called triiodothyronine (T3). The thyroid produces approximately 80% T4 and 20% T3. T4 is generally considered to be inactive and only becomes active when converted to T3, although some researchers believe that T4 does, in fact, have a function. T3 is an active hormone needed by all of the cells and tissues of the body and is the one which does all the work of regulating the body’s metabolism.

Thyroid problems often run in families and can happen at any age. Things can go wrong with the thyroid in two ways:

Hyperthyroidism, also called an overactive thyroid where the thyroid produces more thyroid hormone than it should which causes the metabolism to run too fast.

Hypothyroidism, also called an underactive thyroid where the thyroid doesn’t produce enough thyroid hormone which causes our metabolism to work too slowly.

What are the symptoms Of An Underactive Thyroid (Hypothyroidism) Continue reading “Is Your Thyroid Sabotaging Weight Loss?” →

Weight Management- 3 things you didn’t know

Posted on March 8, 2011December 7, 2011 by admin

By London nutritionist Sylvia Hensher

1. Nutrition-the danger of insulin resistance

If you want to lose weight it’s very important to eliminate obvious sugar from your diet. We’re not just talking about obvious forms found in desserts and processed foods, but also to reduce our consumption of hidden ones in foods most of us consider to be healthy. Hidden sugars are also found in carbohydrates such as grains which break down to simple sugars and can contribute to insulin resistance. What is insulin resistance you may ask? Well, the cells in our body need a continuous supply of glucose (or sugar) for their energy requirements. Glucose, however, cannot penetrate the outer membrane of a cell without the assistance of insulin, a hormone which acts as a gatekeeper, allowing glucose to enter cells. Insulin stimulates the body to convert excess glucose (or sugar) which our cells don’t need (i.e. think too much chocolate etc) into fat and then helps to block the breakdown of this stored fat for energy production, making weight loss difficult.

For various biochemical reasons, the body may become less sensitive to its own insulin and compensates by producing more. Higher insulin levels not only make your body store even more fat, it also makes it more difficult to lose weight by blocking the release of fat from the fat cells so it can be burned for fuel. This explains why so many people have problems losing weight.

2. Exercise- high-intensity interval training & weight lifting

High-intensity interval training done 2-3 times weekly can boost your metabolism and increase fat loss, but is also a potent “anti-aging” strategy, as it will naturally increase your body’s production of human growth hormone (HGH).HGH promotes muscle, effectively burns fat and plays an important role in promoting overall health/longevity.

Weight lifting is another essential part of a programme for kick-starting your metabolism. Having more muscle is one of the best ways of burning fat you will ever come across because it helps you burn more calories, without you having to actually “do” more.

This is because muscle is metabolically very active and requires energy just to sit on your frame – even when you sleep. For every pound of muscle that you gain, your body will burn approximately 50-70 calories more per day, and burning more calories leads to a reduction of excess fat.

3. Are you getting enough sleep? Continue reading “Weight Management- 3 things you didn’t know” →

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