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Life Extension

Chewable Tablets Bone Restore Chocolate Flavored

2 Tablets · 30 servings

iHerbAmazon

Best for

DentalBone & JointImmune

Ingredients (8)

Vitamin D3

100%

Dose

1000 IU

Target

1000–5000 IU

Form

Premium

Calcium

100%

Dose

700 mg

Target

200–600 mg

Form

Standard

Silicon

100%

Dose

5 mg

Target

5–30 mg

Form

—

Boron

100%

Dose

3 mg

Target

3–6 mg

Form

Standard

Magnesium

100%

Dose

300 mg

Target

100–400 mg

Form

Budget

Nutrition

Calories, macros & sodium.

  • Sodium10 mg

Other Ingredients (12)

CarboxymethylcelluloseThickener

Carboxymethylcellulose was the second emulsifier (with polysorbate 80) in Chassaing et al. 2015 (Nature, PMID 25731162), which showed mucus-barrier thinning, a microbiota shift toward pro-inflammatory species, low-grade inflammation, and metabolic syndrome in mice. Chassaing 2022 (Gastroenterology, PMID 34774538) tested CMC directly in a randomized controlled human feeding trial and found reduced microbial diversity and bacterial encroachment into the normally sterile mucus layer in a susceptible subset of participants. EFSA's 2018 re-evaluation could not establish a safe level due to data gaps. For a purely textural excipient, the gut-barrier risk profile is unfavorable when safer thickeners are widely available.

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

Rice FlourFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.

XylitolSweetener

A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.

Natural FlavorsFlavor

Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Vegetable StearateLubricant

A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant

CocoaFlavor

Common food ingredient used for chocolate flavoring in supplements

How to Take It

Best taken in the evening

The Magnesium in it is what pulls this toward the evening. Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.

With a meal containing fat
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron

On the label

Chew two (2) tablets daily, or as recommended by a healthcare practitioner. Scientific studies suggest calcium supplementation in divided doses with food in the morning and evening may yield the best results.

General guidance based on the ingredients, not a substitute for the label or your doctor.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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