Nutrition

Vitamin A: uses and benefits

{vision, gene expression, reproduction, embryonic development, growth, immune function} What is Vitamin A?   Vitamin D is a fat soluble vitamin obtained through diet. It includes retinol, retinyl palmitate, and beta-carotene. There are two forms: Preformed vitamin A (retinol and retinyl ester) is derived from animal sources such as meat, dairy products, and fish. Provitamin A (beta-carotenoid) is derived from colorful fruits and vegetables. Required for: cell growth immune function Eye health fetal development skin health response to inflammation Helps reduce oxidative stress protection against disease male and female re-productivity Toxicity Toxicity can occur because of the long half-life of Vitamin A in the body. Toxicity symptoms include dry skin, headaches, anorexia, nausea, bone pain, and cerebral edema. Toxicity occurs when a very high dose of Vitamin A has been taken. Therefore you should always consult with your health care provider before taking Vitamin A supplementation for correct dosage.   Deficiency symptoms: night blindness xerophthalmia (dry eyes) severely reduced immune competence delayed growth inflamed skin infertility and trouble conceiving respiratory infections slow wound healing Good Food sources Food sources include: sweet potato, spinach, pumpkin and carrots, squash, watermelon, asparagus and broccoli amongst others. DNA TESTING: The DNA Health Skin and DNA Core tests will tell you how well your body metabolises Vitamin A Sources: McEldrew EP, Lopez MJ, Milstein H. Vitamin A. [Updated 2023 Jul 10]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK482362/ Debelo H, Novotny JA, Ferruzzi MG. Vitamin A. Adv Nutr. 2017 Nov 15;8(6):992-994. doi: 10.3945/an.116.014720. PMID: 29141980; PMCID: PMC5683001. Cite this Page Institute of Medicine (US) Panel on Micronutrients. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington (DC): National Academies Press (US); 2001. 4, Vitamin A. Available from: https://www.ncbi.nlm.nih.gov/books/NBK222318/

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Vitamin C uses and benefits

{immune health, antioxidant, increases oxytocin release , collagen and more} What is Vitamin C? Vitamin D is an essential water soluble vitamin. Essential meaning your body can’t produce it. You need to obtain it through food and/or supplements. The name for Vitamin C is ascorbic acid. It is essential for collagen, carnitine and neurotransmitters biosynthesis. Ascorbic acid is easily absorbed but not stored in the body. It has to regularly supplemented through diet or tablets to maintain the ascorbic acid pool in the body. It is absorbed by the small intestine by means of active transport and simple diffusion. Vitamin C is widely distributed in all the body tissues. Its level is high in adrenal gland, pituitary gland, and retina. Its level decreases in kidneys and muscles. Whatever the body doesn’t use, is extrected via urine.   Required for: collagen formation carnitine biosynthesis catecholamine synthesis producing dopamine transforming cholesterol into bile acids inhibiting nitrosamine formation in the stomach. enhancing the absorption of iron preventing scurvy immune system defense wound repair and healing oxidation At risk of deficiency: the elderly smokers Taking medications such as aspirin, indomethacin, oral contraceptives, tetracyclines, and corticosteroids. Those who have renal failure due to filtration of water-soluble vitamin C during dialysis conditions like gingivitis, asthma, glaucoma, collagen disorders, heatstroke, arthritis, infections Deficiency signs: easy bruising fatigue and low mood keratosis pilaris (chicken skin) coiled/corkscrew body hairs spoon-shaped fingernails slow healing of wounds painful joints weak bones bleeding gums and tooth loss weak immune system iron deficiency anemia Did you know? Vitamin C acts a cofactor for oxytocin. It helps stimulate the secretion of oxytocin from the pituitary gland into your bloodstream. Oxytocin is what helps us feel affection and love. According to one study, Vitamin C supplementation effectively increased work motivation and attentional focus and contributed to better performance on cognitive tasks requiring sustained attention. DNA TESTING: he DNA Health Skin and DNA Core tests will tell you how well your body metabolises Vitamin C and the genetic variants you carry that use Vit C in oxidation, and collagen formation. Sources: https://nutritionj.biomedcentral.com/articles/10.1186/1475-2891-2-7 PMC4959991/ PMC8783887/ PMC6071228/  

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Carbohydrates and your hormones

Carbohydrates are one of three main macronutrients your body needs to function.   Your body breaks down carbohydrates into glucose. Which is the main source of energy for your body’s cells, tissues, and organs. Glucose can be used immediately or stored in the liver and muscles for later use.   There are three main types of carbs: sugars, starches and fiber.   Carbohydrates are often blamed for weight gain, diabetes and insulin resistance. And this is true of a diet high in simple carbohydrates.   Carbs are divided into two groups: simple or complex.     ?Simple: used immediately for energy, normally contain more sugar and are often refined and processed. These often give you a blood sugar spike.   ?Complex: sustained form of energy which stabilizes your blood sugar. Stable blood sugar equals balanced hormones.   Complex carbs can be found in whole grains, (whole grains means it still has the endosperm and husk and thus essentially all the nutrients and fiber intact), legumes, vegetables, and fruit, dairy products.   ⚠️Carbohydrates are essential for producing and balancing hormones. Reducing total carbs long term can result in an increase in cortisol which can lead to adrenal fatigue and a dysregulation of the HPA axis.   When we don’t give our body enough fuel to use for energy, we put stress on the adrenal glands which in turn can lead to a thyroid issue.     ✅️Include complex carbs such as sweet potato,green beans, whole grains like buckwheat, gf oats, brown rice, quinoa.   ✅️Limit simple carbs such as sugars, cakes, pastries, cookies for occasional treats.   And lastly, genetics. Some of us are more genetically built to favor carbs and do well on a diet that includes complex carbs. (Which can include a low carb diet, not a no-carb diet) For example those with the A allele of the PLIN gene show protection against obesity when there is a higher intake of complex carbohydrates.   Others are more suited to a low fat diet or Mediterranean way of eating.   What’s key to remember is that the human body needs carbohydrates, but  carbohydrate requirements differ from one person to another,based on many factors such as age, activity level, phase of life, genetics.   Remember: your diet is one of the key foundation to hormone health.    How to tell if your carbohydrate intake is too low: You are tired and sluggish You struggle to concentrate You don’t feel satisfied after a meal You have constant cravings Your menstrual cycle is haywire Headaches Constipation   Low carbs can also mean a decrease in fiber. Fiber is essential for a healthy gut microbiome and to avoid constipation which in turn means less nasty estrogens recirculating in your body. For more information on what type of diet is best suited to your genetics, why not take the DNA Diet genetic test? This test looks at certain genetic variations and let’s you know what type of diet is best suited to your personal needs.  

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What you need to know about Collagen

What is Collagen? Collagen is a protein your body makes. It is essential for healthy joints and skin elasticity. Collagen’s strong fibers work like glue to hold things together in your body: muscles, bones, tendons, ligaments, organs, and skin. Different types There are many different types of collagen in your body and each perform a different function. Type I builds skin, bones, tendons, and ligaments. Type II helps to make cartilage, the flexible tissue between bones and in your ears and nose. Type III helps create muscles and blood vessels.   Collagen loss Collagen decreases with age and the fibers become thinner and weaker. The age we start to lose collagen is around 25. After the age of 40, you lose around 1% per year. By the age of 80, collagen production has decreased by 75%   Other factors also contribute such as: too much sun exposure (ultraviolet rays can cause collagen to break down in the skin) Smoking causes oxidative stress low levels of vitamin C, which can lead to scurvy. Genetic conditions such as Osteogenesis imperfecta which can can lead to weak bones. Do collagen supplements work? Studies show that hydrolyzed collagen can decrease joint pain, increase bone mineral density, reduce wrinkles and improves skin elasticity and hydration. PMID: 18416885 PMID: 29337906 PMID: 33742704 Takeaways: • Anyone over the age of 25 can benefit from a collagen supplement. • Remember it should be hydrolyzed collagen containing type 1 and 3 • Topical skin care products containing collagen are ineffective. Topical collagen molecules are too large to penetrate and will remain on the surface of your skin. • protect your skin from sun exposure by wearing a sunscreen when in the sun. • Get a genetic test that gives you lifestyle, diet and supplement recommendation according to your genetics. Take the DNA Skin test which will let you know how well your body does in this regard.

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The many uses and benefits of zinc

Disclaimer: This is an educational and informative post, nothing in it is meant to take the place of medical treatment, neither does it claim to treat, cure or diagnose any condition. What is zinc? Zinc is an essential nutrient. Essential meaning your body cannot produce it, you need to get it through food sources such as fish, eggs and dairy products. Cereals, grains, nuts and legumes contain smaller and less efficiently absorbed amounts of this element. Bioavailability of zinc is better from animal sources than from plant food sources due to phytates in plants inhibiting the absorption of zinc.     Zinc is Required for: • immune function • gene expression • DNA synthesis • protein synthesis • growth and development • cell growth • wound healing • skin health • hormone synthesis • antioxidant action • eyesight • cognitive function • skin, hair and nails     Zinc Deficiency: The main cause of deficiency is inadequate dietary intake, which is common in many parts of the world. In 2001 it was estimated that almost half of the global population at that time was at risk of zinc deficiency. People at most risk for deficiency include those with sickle cell anemia, pregnant and breastfeeding women, vegetarians and vegans, those with chronic kidney disease and untreated Celiac disease.   Deficiency signs: • diarrhea • loss of hair or thinning hair • impaired taste or smell • fertility issues • impaired wound healing • Psoriasis and other skin issues • Brittle nails • thyroid issues     Zinc and the Thyroid Selenium and zinc are needed for converting T4 to T3. Zinc deficiency impairs Thyrotropin-releasing hormone synthesis, but also TSH, T3, and T4. Those with hypothyroidism often have reduced levels of zinc and copper. There is a bi-directional relationship: Hypothyroidism leads to zinc deficiency and zinc causes hypothyroidism.   Hormones Zinc deficiency in males results in impotence, hypogonadism or delayed sexual development. Testosterone being involved. In Women a Zinc deficiency impairs FSH which is what tells your ovaries to produce progesterone. Zinc is also needed for the production of estrogen and insulin.     Did you know? A Blood (serum) test is not a reliable indicator of zinc levels and normal values may be obtained in the presence of sub clinical zinc deficiency. The concentration of zinc in hair is a more reliable indicator of chronic zinc deficiency.   Sources: PMID: 30772815 PMC3746228 PMC7468694 https://www.mdpi.com/2072-6643/12/6/1769

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