Quick AnswerDirect answer: Milk thistle is the plant; silymarin is the name used for a mixture of compounds that makes up a major constituent of milk...

Quick AnswerDirect answer: Calcium citrate and calcium carbonate are both common calcium supplement forms, but they differ in elemental calcium content and how dependent they are...

Quick AnswerDirect answer: ginkgo biloba extract and ginkgo leaf powder are not automatically the same type of ingredient. An extract is produced from plant material using...

Quick AnswerDirect answer: hawthorn is a botanical commonly used in heart and circulation supplement categories, but current evidence does not establish it as a treatment for...

Quick AnswerDirect answer: iodine from iodized salt and iodine from dietary supplements both contribute to your total iodine intake. The important question is not which source...

Quick AnswerDirect answer: ashwagandha is a botanical sometimes included in stress, wellness, and thyroid-oriented supplement formulas, but it is not an established treatment for thyroid disease....

Quick AnswerDirect answer: NAD+, NR, and NMN are related, but they are not the same ingredient. NAD+ (nicotinamide adenine dinucleotide) is a coenzyme used throughout normal...

Quick AnswerDirect answer: no. A bottle with 90 capsules does not automatically provide a 90-day supply. Days of supply depend on how many capsules make one...

Quick AnswerDirect answer: piperine is a compound in black pepper that can increase the bioavailability of curcumin, a major component of turmeric. But seeing “black pepper”...

Quick AnswerDirect answer: zinc and copper are sometimes paired in supplements because high supplemental zinc intake over time can interfere with copper absorption. However, simply putting...

Quick AnswerDirect answer: magnesium glycinate is a form of magnesium in which magnesium is bound to glycine. On a Supplement Facts panel, the most important number...

Quick AnswerDirect answer: yes, more than one supplement can contain vitamin D3, vitamin K2, or both. The safest way to compare a routine is to add...