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Clinical Updates (13)
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8/24/2021
Pfizer Vaccine Approved
Learn about approval of the Pfizer vaccine and find out how approval differs from authorization, who it is approved for, and whether doctors should prescribe it for unapproved uses.
6/27/2020
Signs of Too Much Vitamin D
Doctors were surprised to discover that symptoms exhibited by a 64-year old woman were due to very high levels of vitamin D from supplements. Learn about the symptoms of too much vitamin D in the Concerns and Cautions section of the Vitamin D Supplements Review. Also see our Top Picks among vitamin D supplements and learn How Much Is Too Much vitamin D.
4/17/2016
Vitamin D and Allergy
Vitamin D is known to modulate the immune system. Having sufficient levels is associated with reduced risk of allergy and asthma. A recent study showed that giving vitamin D to pregnant women and their infants resulted in fewer infants being allergic to house dust mites and needing to see a doctor for asthma. For details, see "Allergy," as well as "Asthma," in the What It Does section of the Vitamin D Supplements Review >>
5/22/2018
Hair & Nail Supplements Can Skew Lab Tests
There are reports of high-dose biotin (common in "hair and nail" supplements) causing false readings on blood tests. Be sure to tell your doctor if you're taking high-dose biotin. Get the details in the Biotin section of the B Vitamin Supplements Review.
8/08/2018
Which Curcumin Formulation Is Best?
Curcumin (which comes from turmeric) is not well absorbed unless taken with a fatty (oily) meal, so many formulations have been developed that enhance its absorption. Which of these is best absorbed? Find out in the Which form is best section of the Turmeric and Curcumin Supplements Review. (Also see our Top Picks among tested turmeric and curcumin supplements.)
9/14/2021
Best Way to Store Olive Oil
Even if unopened, it is best to store extra virgin olive oil (EVOO) at the right temperature, according to results of a recent study. Get the details on the best way to store EVOO in our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.
10/28/2012
Large Study Suggests Best Vitamin D Level
What's the best level of vitamin D in your body for overall health? One way to answer this question is to compare mortality rates (deaths per year) associated different levels of vitamin D. A new study did just this, reviewing information about thousands of Americans. It concluded the best levels are between 20 and 40 ng/mL, as the risk of dying is fairly similar across this range. However, a closer look at the findings suggests an even smaller range actually associated with the lowest mortality. For the details, as well as our suggestions on how to use vitamin D, and quality ratings of products, see the Vitamin D Review. More >>
5/12/2013
Best Supplements for Vision (Macular Degeneration)
A major new study revealed what combination of supplements is best for slowing progression of macular degeneration -- and which don't seem to help. Get the details, plus quality ratings on over 20 vision supplements in the updated Vision Supplements Review >>
1/05/2019
Is Protein Best Before or After a Meal?
A new study showed that the timing of protein supplementation around a meal can determine the effect on blood sugar in people with insulin resistance. Find out the best timing in the update to the Protein Powders, Drinks, and Shakes Review. (Also see our Top Picks among products.)
4/27/2021
Best Curcumin Formulation?
Which curcumin formula has the best bioavailability? Learn what a recent study found when comparing the popular formulas C3 Complex, Meriva, NovaSOL and Turmipure Gold. See the Absorption and Bioavailability section of the Turmeric and Curcumin Supplements and Spices Review. Also see our Top Picks among turmeric and curcumin products.
8/10/2021
Best Form of B-12 for Vegans?
What form of vitamin B-12 appeared best at raising B-12 levels among people on plant-based diets in a new study, and how did this compare to getting B-12 from plant-based foods? Find out in the B-12 section of our B Vitamin Supplements Review. Also see our Top Picks for vitamin B-12.
10/06/2020
Best Absorbed Form of Fish Oil?
Which form of fish oil is best absorbed? Find out what two recent studies showed in comparing triglyceride, ethyl ester, and monoacylglyceride forms of fish oil in the Forms of Fish Oil section of Fish Oil Supplements Review. Also see our Top Picks for fish oil.
6/07/2017
Spoiled Fish Oil Is Less Effective
Spoiled fish oil does not lower LDL "bad" cholesterol, while the same amount of non-spoiled fish oil does, according to a new study. If you take fish oil to improve your cholesterol levels, it would seem best to use a product that is not spoiled — something ConsumerLab tests for. (It may also be best to choose an oil in the triglyceride form, rather than the ethyl ester form). For details, see the "Quality Concerns" section of the Fish Oil Supplements Review. Also see our Top Picks among fish oils.
