Diet pills, supplements and surgery
Learning Center
Alli weight-loss pill: Does it work?
Alli is an over-the-counter weight-loss pill that keeps your body from absorbing all of the fat in food. Learn about the drug's benefits and side effects.
Apple cider vinegar for weight loss
Proponents tout apple cider vinegar as a weight-loss aid, but there's little proof that it works.
Bitter orange weight-loss supplements: Do they work?
Bitter orange is in some weight-loss supplements. It acts like a stimulant, which sounds promising but has risks.
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Dietary supplements for weight loss
Do dietary supplements deliver on weight-loss claims? Are they safe? Get the facts.
Different types of COVID-19 vaccines: How they work
Find out how different COVID-19 vaccines cause your body to create antibodies that will fight the COVID-19 virus.
Do cortisol blockers aid weight loss?
Cortisol blockers claim to help with weight loss, but do they deliver? The evidence is slim at best.
Growth plate fractures
Growth plate fractures — This common childhood bone injury often needs immediate treatment as it can result in a shorter, longer or crooked limb.
Hoodia: Does this dietary supplement help weight loss?
Hoodia manufacturers claim the supplement controls appetite, but where's the evidence to back up these claims?
Multiple sclerosis
This nervous system disorder causes a range of symptoms — and while there's no cure, it's possible to have long periods of remission.
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