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Clinical Updates
2025
January
Gluten Concern with Trader Joes’ Oats
January 02, 2025
Be aware that a separate testing group reported excessive gluten in an oat product from Trader Joe’s. For details, see our Oats Review, which includes our Top Picks among oat products.
Is NMN Still Sold?
January 02, 2025
NMN (nicotinamide mononucleotide) supplements are no longer sold by Amazon and Walmart. Find out why and where NMN is still sold in our NAD Booster Supplements Review, which includes our Top Picks among products.
Melatonin for Mild Cognitive Impairment?
January 02, 2025
Did taking melatonin improve cognition among older people with mild cognitive impairment in a recent study? Find out in our Melatonin Supplements Review, which includes our Top Picks among melatonin supplements.
Fish Oil for Long COVID?
January 02, 2025
Does taking fish oil improve symptoms of long COVID such as shortness of breath, cough, fatigue, lack of taste, or loss of smell? Find out what a recent study showed in the COVID-19 section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.
Heavy Metals in Multivitamins?
January 06, 2025
Tests conducted by a separate group reported "unsafe" levels of lead, arsenic, and/or cadmium in a children’s multi and a prenatal supplement (which ConsumerLab also tested). See our take on this in our Multivitamin and Multimineral Supplements Review, which includes our Top Picks among multivitamins.
Which Prenatals Have The Right Stuff?
January 06, 2025
Many prenatal vitamins may not correct nutrient deficits that occur in pregnancy, according to a recent study. Find out which products are closest to providing the right ingredients in the Prenatal section of our Multivitamin and Multimineral Supplements Review.
Heavy Metals in Hemp Seeds?
January 06, 2025
Testing of Manitoba Harvest Organic Hemp Hearts by a separate group identified levels of cadmium and arsenic it considered unsafe for children. See our take on these results in our article about hemp seeds.
Green Tea Interaction for Men
January 06, 2025
Green tea may significantly increase blood levels of a common medication for men. Get the details in the Concerns and Cautions section of our Green Tea Review, which includes information about many other green tea interactions, including with statins and blood-thinners.
Also see our Top Picks among green tea beverages and supplements.
Risk With Too Much Vitamin A
January 06, 2025
Hypercalcemia (too much calcium in the blood) is a known risk when taking too much vitamin D, but it can also occur with high doses of vitamin A, as highlighted by a recent report. Get the details in our Vitamin A Supplements Review, which includes our Top Picks for vitamin A and beta-carotene.
Another Salmon Gone
January 09, 2025
We recently learned that our Top Pick for canned, sockeye “red” salmon, is no longer available. See our current recommendation in the Top Picks section of our Canned Fish Review – which includes our picks for tuna, pink salmon, sardines, and herring. (We are currently testing more canned fish products, based on members’ suggestions, so stay tuned for results.)
Estrogen Cream Side Effects
January 09, 2025
Be aware that a formulation change to a popular OTC estrogen cream may be causing unexpected side effects. See our article about estrogen creams for wrinkles.
Supplements for Hair
January 09, 2025
Find out if HUM Hair Strong Gummies or Nutrafol Men increased hair growth in recent studies. This, and more, is in our article about supplements for hair.
Low Magnesium Due to PPI Use
January 09, 2025
Be aware that long-term use of proton-pump inhibitors (PPIs, such as Prilosec, Nexium, and Prevacid) can cause magnesium deficiency. Magnesium supplementation is sometimes not enough to reverse this. Learn more in our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Baking Soda for Heartburn?
January 09, 2025
Baking soda may temporarily relieve heartburn but be aware that overuse can have adverse effects. Get the details in our article about supplements and foods for reflux and heartburn.
Also see our Top Picks among alginate supplements for reflux.
Protein Powder Contamination
January 13, 2025
Recent tests of protein powders by a separate group showed that certain forms of protein were more likely than others to be contaminated with lead and cadmium. For details, see our Protein Powders Review, which includes our Top Picks for protein powders and shakes.
Plastic from Tea Bags
January 13, 2025
A small study suggested that some plastic tea bags release much larger amounts of nanoplastics than others. For details, and how to avoid nanoplastics from tea bags, see our Green Tea Review, which includes our Top Picks for green tea.
Phthalates Found in Avocado Oil
January 13, 2025
Testing of avocado oils by a separate research group detected phthalates (hormone disruptors) in all samples. Find out how these amounts compare to safety limits in the Quality Concerns section of our Avocado Oils Review, which includes our Top Pick for avocado oil.
Viviscal and Liver Injury?
January 13, 2025
A CL member who took the hair growth supplement Viviscal attributed liver damage to the product. Find out if there have been similar reports, or ingredients in Viviscal linked with liver injury, in our article about supplements for hair.
Iron & Thyroid Function
January 13, 2025
Iron deficiency can cause an underactive thyroid (hypothyroidism), but it’s important that iron not be taken at the same time as thyroid medication. Get the details in our Iron Supplements Review, which includes our Top Picks for iron.
Also see our article about supplements and thyroid function.
Calcium Before Exercise?
January 16, 2025
A recent study suggested that taking calcium before load-bearing exercise helped prevent bone turnover, but is this important? Find out in the Bone health and fractures section of our Calcium Supplements Review, which includes our Top Picks for calcium.
Vitamin D & Migraine
January 16, 2025
Low blood levels of vitamin D have been linked with higher migraine frequency. A new study suggests why. Get the details in our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.
Also see our article about supplements and migraine.
Red No. 3 To Be Banned
January 16, 2025
The colorant, Red No. 3, will be banned from foods and supplements starting in 2027. Find out why in our article about Other Ingredients in Supplements.
Prenatal for Men
January 16, 2025
AlphaSperm Men’s Prenatal + was recently Approved for quality by ConsumerLab through our voluntary Quality Certification Program and added to our Multivitamin and Multimineral Supplements Review.
