Shopping cart filled with vitamin tablets

Solving the mystery of how to buy vitamins

How do you choose the right vitamin brand? Let’s back up: How do you even know which vitamins you should be taking? I have been asked these questions hundreds of times throughout my career. Here’s my response: Remember the first five letters of the alphabet.

A: Analyze why you want to take this vitamin. Understand what to expect from taking this supplement. For example, a good quality fish oil supplement may help to lower your triglyceride levels but will have no impact on your HDL cholesterol.

B: Beware of interactions and side effects. Some vitamins, such as vitamin K, may not be recommended if you are also taking a blood thinning medication. St. John’s wort may reduce the effectiveness of anti-depressants and birth control pills.

C: Check for the letters cGMP on the label or packaging. They indicate the product has passed current Good Manufacturing Practices quality testing. Other seals of approval may be: USP, CL or NSF.

D: Dose. Know the proper dosage. Taking more than the recommended amount may jeopardize your health. Taking a supplement consistently also matters.

E: Expiration dates. All vitamins and supplements have expiration dates printed on the box, bottle or label. Always discard them after that date.

My advice on some of the most commonly purchased vitamins:

• Vitamin A: This is best known for its importance for vision, skin health and immune function. Prescription vitamin A derivatives are used to treat acne, wrinkles and other skin conditions. Dosages greater than 5000 IU may increase the risk of osteoporosis and are not recommended for pregnant women due to risk of birth defects. Choose a supplement that contains beta-carotene, which is converted to vitamin A in the liver but is not associated with the health risks seen with vitamin A.

• B-Vitamins: Important for the health of the nervous system, energy production and many enzyme reactions in the body. The B-vitamins work in conjunction with each other to support numerous body processes. B12 absorption requires proper functioning of the stomach, pancreas and intestines, and a deficiency is common especially among the elderly, those with poor diets, vegetarians and those with digestive problems such as Crohn’s, colitis, IBS and celiac disease. If you’re over 50, or have low stomach acid or digestive disease, look for sublingual forms of vitamin B12, which are absorbed under the tongue directly into the circulation.

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• Vitamin C: Popularly known as the vitamin for immune support, vitamin C is also important for skin health (synthesis of collagen), wound healing and gum health. Many drugs, such as birth control pills and aspirin, can deplete vitamin C, as can stress and smoking. If you have a sensitive stomach look for a buffered vitamin C, such as calcium ascorbate. This form is less acidic and less likely to cause upset stomach.

• Vitamin D: Once thought of as primarily important for bone health, the use of vitamin D for other health conditions is greatly expanding. Recent research has found that vitamin D plays a key role in immune function, cancer prevention, regulating blood pressure and it may help to prevent autoimmune diseases such as multiple sclerosis. Supplements are particularly important for those without adequate sun exposure, those with dark skin, the elderly and those with celiac disease and liver disease. Look for a supplement that provides vitamin D3 (not D2). The Institute of Medicine recommends 600 IU for those ages one through 70 and 800 IU for those older than age 70.

• Vitamin E: Long touted for its heart health and skin health benefits, research on some forms of vitamin E is yielding exciting results. Most people think of vitamin E as a single nutrient but there are actually eight different forms of vitamin E: four tocopherols and four tocotrienols. Tocopherols and tocotrienols have entirely different health benefits. Recent research has found that certain tocotrienols may possibly limit the neurological damage if you have a stroke. Tocotrienols are also good for the heart. Look for tocotrienol supplements derived from Malaysian palm fruit oil, which is non-GMO. Palm fruit oil has a neutral effect on cholesterol, and red palm fruit cooking oil can tolerate high-heat cooking better than olive oil.

And always talk with your doctor about any vitamin and/or dietary supplements you are taking. Used properly, dietary supplements can be smart additions to a healthy lifestyle.

 

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