Licensed U.S. retail desk for Glyco Defender1 dropperful a day · 30 mL bottleFree US shipping on 6 bottles60-day money-back guarantee
Order now

Blog · Ingredient evidence

Raspberry Ketones Evidence: What Exists and What Is Missing

Quick answer

Raspberry ketones evidence is thin: most research is in animals and cells, and the only human studies used multi-ingredient products. No benefit can be credited to raspberry ketone alone. In Glyco Defender it is the 13th blend line, so a dropperful holds at most 1.2 mg.

Written by the Glyco Defender label deskUpdated · 4 min read

Illustration of plant and compound lines in the Glyco Defender blend
Illustration of blend ingredients, made for this site.

Do raspberry ketones work?

Nobody has shown it. The Department of Defense supplement safety office reports that most research is in animals and cells, and that the human studies used multi-ingredient products (OPSS (DoD), Raspberry Ketone).

That design cannot isolate one ingredient. If a blend helped, you could not tell which part did the work.

The same source finds no evidence that raspberry ketone supplements are safe or effective for weight loss (OPSS (DoD), Raspberry Ketone).

How much raspberry ketone is in Glyco Defender?

At most 1.2 mg per dropperful. It is the 13th of 21 blend lines, and the blend weighs 15.47 mg in all.

The supplement doses the source describes ran from 100 to 1,400 mg a day, far above normal food intake (OPSS (DoD), Raspberry Ketone). Even the low end of that range is about 80 times the label ceiling.

Raspberry ketone: product doses against the label ceiling.
MeasureAmount
Supplement doses described100 to 1,400 mg a day (OPSS (DoD), Raspberry Ketone)
Label place13th of 21
Most per dropperful1.2 mg
Even splitAbout 0.74 mg
Exact amountNot published

Blend rules allow the hidden amount (21 CFR 101.36 (eCFR)). The ceiling is simple division, not a measurement.

What does a tiny dose mean for you?

It means two things at once: a very small chance of effect, and a very small chance of harm from this line alone.

A small share does not make the whole formula proven. It makes this one line a minor part of a long list.

Keep taking prescribed medicine

Never change a prescribed medicine because of a supplement. Ask your doctor before you add one, especially if you manage blood sugar.

Glyco Defender: from $49 a bottle30 mL · 1, 3 or 6 bottles · free US shipping on 6 · 60-day money-back guarantee

See packs

How should you judge a formula with many small lines?

Ask what each line can hold and what a study used. If the gap is huge, the line is decoration, not a dose.

The ingredients page does that math for all 22 lines, and the supplement facts page shows the printed panel.

Thinking of ordering Glyco Defender?

3 Glyco Defender dropper bottles

Popular size

3 bottles: $177$59 a bottle · 90 days · about $1.97 a day · Shipping shown at checkoutGet 3 bottles
6 Glyco Defender dropper bottles

Best value

6 bottles: $294$49 a bottle · 180 days · about $1.63 a day · Free US shippingGet 6 bottles

Sales-page prices, October 18, 2026 (Glyco Defender sales page). One bottle is $89. 60-day money-back guarantee. Check your medicines with your doctor first.

FAQ01

Questions about raspberry ketones

Are raspberry ketones the same as raspberries?

No. A raspberry ketone supplement is a concentrated compound, and its doses far exceed normal dietary intake (OPSS (DoD), Raspberry Ketone). Eating the fruit is not the same exposure.

Is raspberry ketone proven for weight loss?

No. There is no evidence that raspberry ketone supplements are safe or effective for weight loss (OPSS (DoD), Raspberry Ketone). Glyco Defender makes no weight claim on its bottle.

Where do raspberry ketones sit on the Glyco Defender label?

They are the 13th of 21 blend lines, after cayenne, grapefruit seed and ginseng. The lines run from most to least by weight, so only a small share is possible.

Who wrote this02

Written and reviewed by

Written byThe Glyco Defender label deskIglycodefender, licensed U.S. retail desk for Glyco Defender

Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.

Medically reviewed byDr. Andres Palacio, MD, PhysicianRole: Medical reviewerReview date: October 19, 2026

Last updated . Read our editorial standards and how we check reviews. This website is run by a licensed U.S. retail desk for Glyco Defender, not by the manufacturer or the label's distributor. Buying through our order links earns us money.

Licensed U.S. retail desk for Glyco Defender

Ready to try Glyco Defender?

Start by checking your medicines, then pick a pack. Six bottles cost the least per bottle and ship free in the US, and the 60-day money-back guarantee counts from the day you buy.

  • Secure checkout
  • 60-day money-back guarantee
  • Ships from the U.S.
Four amber Glyco Defender dropper bottles in a row

Glyco DefenderFrom $49 a bottle · free US shipping on 6 · 60-day money-back guarantee

See packs