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Must I take amino acid supplements on an empty stomach? Can I take them with other amino acids or with food to help with swallowing capsules?

Find out if you should take amino acid pills on an empty stomach or with food in order to maximize absorption, and more about the best way to take amino acid supplements.

Amino Acids

CL Answer

Can beetroot juice improve my workout performance?

Find out if beetroot juice can help improve exercise endurance or performance, how it works, the clinical evidence, and cautions.. ConsumerLab.com's answer explains.

Beetroot juice and exercise performance - glass of beetroot juice

Product Review

Human Growth Hormone (HGH) and Insulin-like Growth Factor-1 (IGF-1) Supplements Review Article

Human Growth Hormone Supplements: Evidence and Safety. What Can HGH Supplements Really Do? Beware of Misleading Claims!

News Release

9/27/2012

ConsumerLab.com Reveals How Much Caffeine is in Energy Drinks -- Also Finds Some Drinks and Dietary Supplements Don't Contain Claimed Amounts of B Vitamins

White Plains, New York — September 27, 2012 — Energy shots and drinks are promoted to keep you alert and energized, attributing their effects to special formulas often "packed with B vitamins and nutrients to make it last," as a commercial for 5-hour Energy proclaims.

News Release

11/29/2011

ConsumerLab.com identifies many quality melatonin sleep supplements, but prices range from 4 cents to over $1 for the same dose

White Plains, New York — November 29th, 2011 — Can melatonin help you sleep? "Melatonin supplements may help some people get to sleep sooner, particularly those with chronic sleeping problems, but don't just buy any supplement - they vary significantly in strength, dosage, and cost," ...

News Release

12/14/2010

DHEA supplements, touted for anti-aging and strength, reviewed by ConsumerLab.com. Testing finds one brand with only 14.7% of labeled amount

WHITE PLAINS, NEW YORK — DECEMBER 14, 2010 — Recent tests of DHEA supplements showed that most products contained their claimed amounts of the controversial ingredient, but one provided only 14.7% of its listed amount, the testing company ConsumerLab.com reported today.

News Release

10/07/2009

ConsumerLab.com finds that only two-thirds of alpha-lipoic acid supplements selected for testing pass quality review -- Anti-oxidant supplements helpful to diabetics

White Plains, New York — Wednesday, October 7, — Alpha-lipoic acid (also called lipoic acid) is a natural anti-oxidant that can help diabetics reduce symptoms of peripheral neuropathy and control blood sugar, among other uses. ConsumerLab.

News Release

3/10/2009

ConsumerLab.com reports deficiencies in some supplements containing calcium, vitamin D, or vitamin K -- Focus on bone health supplements and new uses for vitamins D and K

WHITE PLAINS, NEW YORK — MARCH 10, 2009 — In a large review of supplements relating to bone health, ConsumerLab.com reported today that tests showed five products to provide only 52.5% to 89% of the listed amounts of calcium or vitamin K. ConsumerLab.

News Release

2/06/2008

Consumers warned of lead in some turmeric supplements — Highest lead level ever reported by ConsumerLab.com; Lack of active compound also a problem

WHITE PLAINS, NEW YORK — FEBRUARY 6, 2008 — Turmeric supplements have become popular in recent years but ConsumerLab.com warned today that some products contain high amounts of lead. Recent tests found a popular brand to contain 18.

News Release

9/19/2006

DHEA supplements, touted for anti-aging and strength, reviewed by ConsumerLab.com — Testing finds one brand with 215% of the labeled amount

WHITE PLAINS, NEW YORK — SEPTEMBER 19, 2006 — New tests of supplements containing the hormone DHEA found most to contain their claimed amounts of the controversial ingredient, but one provided 215% of its stated amount, the testing company ConsumerLab.com reported today.

News Release

3/29/2006

ConsumerLab.com reports on 29 popular melatonin sleep supplements

WESTCHESTER COUNTY, NEW YORK — MARCH 29, 2006 (UPDATED APRIL 7, 2006) — ConsumerLab.com announced test results today from its new Product Review of Melatonin Supplements covering 29 products.

News Release

2/06/2006

ConsumerLab.com finds most prostate supplements have correct ingredients, but three fail testing — Results posted for 22 supplements containing saw palmetto and beta-sitosterol

WESTCHESTER COUNTY, NEW YORK — FEBRUARY 6, 2006 — ConsumerLab.com announced test results today from its new Product Review of Prostate Supplements.

Recalls & Warnings

5/17/2007

Recall of Shark Cartilage Due to Potential Contamination

On May 16, 2007, NBTY, Inc.