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CL Answers
Below are popular questions answered by ConsumerLab.com
What is the best source of vitamin D3 -- from lanolin in sheep's wool or from fish oil?
Learn more about vitamin D3 sources, such as lanolin (from wool) and fish oil, as well as their prices and their effects.
Which supplements and foods can help treat constipation?
Find out which supplements and foods can help for constipation, including fiber, flaxseed, probiotics, magnesium and fruit.
What is the difference between the "Best By" date and the "Date of Manufacture" on a supplement label? How do I know how long my supplement will last before it "goes bad"?
To understand if your vitamins and supplements expire, learn more about the "Best By" and "Date of Manufacture" dates on labels.
Is it true that green tea can interact with blood-thinning medications like warfarin (Coumadin) or clopidogrel (Plavix)?
Green tea interaction with blood thinners. Does it counteract the effects of blood-thinners like warfarin (Coumadin) and clopidogrel (Plavix)?
What is Prelief? Does it really help for heartburn and/or bladder pain from acidic foods?
Prelief information, including what it has been claimed to do (such as helping with painful bladder, frequent urination, heartburn or indigestion from acidic foods), clinical evidence, and safety.
Help! How do I know how much magnesium I am actually getting from my supplement? The label says it contains 500 mg of magnesium "as magnesium citrate" -- but how much of that is magnesium and how much is citrate?
Understand the actual amount of magnesium dosage (or "elemental magnesium") you are getting from your supplement. ConsumerLab.com explains.
Does Restore (Biomic Sciences LLC) really improve gut health? What is in Restore?
Learn more about Restore, including clinical studies on gut health, dosage, cost, and safety.
Could taking vitamin C (500 mg), CoQ10, grape seed extract, fish oil, vitamin D3/calcium/magnesium/zinc interfere with taking beta-sitosterol with dinner?
Learn about drug interactions & proper dosages for supplements such as CoQ10, vitamin D & C, fish oil, magnesium, zinc and grape seed extract.
Are lozenges and sublingual pills considered dietary supplements?
Learn more about lozenges and sublingual pills (such as echinacea, zinc and B12) including safety warnings.
Can beetroot juice or supplements lower blood pressure or improve exercise performance, and are they safe?
Learn more about beetroot juice and beetroot supplements and if beetroot can really help lower blood pressure.
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