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Cold season is here — but could vitamin D keep sniffles at bay? Discover what the latest research says about vitamin D’s role in preventing respiratory infections and shortening sick days in our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.
A man developed liver injury six weeks after starting a turmeric supplement with black pepper extract. Learn what happened in our Turmeric and Curcumin Review, which includes our Top Picks for turmeric and curcumin supplements and spices.
Recent tests revealed some protein powders contain high levels of lead. Before you scoop, check out the Quality Concerns section of our Protein Powders, Shakes, and Meal Replacements Review, which includes our Top Picks for protein.
Does ashwagandha boost testosterone? What about thyroid hormones? See what a recent study found and our Top Picks for ashwagandha.
Vitamin D supplementation appeared to improve hearing and decrease tinnitus (ringing in the ears) in people with sudden hearing loss and low levels of vitamin D, according to a recent study. Get the details in our Vitamin D Supplements Review.
DAO supplement info for histamine intolerance, including diamine oxidase safety, evidence from clinical studies, and dosage.
Learn which supplements can ease tinnitus, including melatonin and pine bark extract. Understand which may actually cause tinnitus.
Are there supplements that can help prevent or treat cold symptoms? Learn more about zinc, probiotics, vitamin C and more.
Learn about the potential health benefits of L-carnosine, as well as possible safety concerns, drug interactions and cost.
Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.
Cold season is here — but could vitamin D keep sniffles at bay? Discover what the latest research says about vitamin D’s role in preventing respiratory infections and shortening sick days in our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.
A man developed liver injury six weeks after starting a turmeric supplement with black pepper extract. Learn what happened in our Turmeric and Curcumin Review, which includes our Top Picks for turmeric and curcumin supplements and spices.
Recent tests revealed some protein powders contain high levels of lead. Before you scoop, check out the Quality Concerns section of our Protein Powders, Shakes, and Meal Replacements Review, which includes our Top Picks for protein.
Does ashwagandha boost testosterone? What about thyroid hormones? See what a recent study found and our Top Picks for ashwagandha.
Vitamin D supplementation appeared to improve hearing and decrease tinnitus (ringing in the ears) in people with sudden hearing loss and low levels of vitamin D, according to a recent study. Get the details in our Vitamin D Supplements Review.
DAO supplement info for histamine intolerance, including diamine oxidase safety, evidence from clinical studies, and dosage.
Learn which supplements can ease tinnitus, including melatonin and pine bark extract. Understand which may actually cause tinnitus.
Are there supplements that can help prevent or treat cold symptoms? Learn more about zinc, probiotics, vitamin C and more.
Learn about the potential health benefits of L-carnosine, as well as possible safety concerns, drug interactions and cost.
Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.
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October 27, 2025
October 27, 2025
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