Safety guide

Generally Recognized as Safe (GRAS)

Ingredients that most people can consume at typical doses without harm — not a guarantee for every individual or dose.

Upper Limit (UL)

The highest daily intake likely to pose no adverse risk for most adults. Going above it raises the chance of side effects.

Effective dose

The amount shown in research to produce the claimed effect. Below it, you may get little to no benefit.

Tolerance

When your body adapts to an ingredient (common with caffeine), so the same dose gives a smaller effect over time.

Stacking

Taking multiple supplements together. Effects and side effects can add up or interact, so total daily intake matters.

A proprietary blend lists several ingredients under one total weight, but does not tell you how much of each is in there.

This matters because an ingredient only works in a dose range. A blend can legally include a tiny, ineffective amount of a popular ingredient to make the label look impressive, while the bulk is cheap filler.

When a label uses a proprietary blend, VeriSupp lowers the transparency score and flags it — you can't confirm you're getting an effective dose.

Excess flag: an ingredient's total daily dose is above the typical upper limit. Side effects become more likely (e.g. caffeine above 400 mg/day causing jitters and insomnia).

Deficit flag: an ingredient is included well below its effective dose, so you're unlikely to see the claimed benefit.

Redundancy flag: multiple products in your stack supply the same ingredient, so your real intake is higher than any single label suggests.

Caffeine: keep total daily intake under 400 mg; avoid within 6 hours of bed.

Iron: only supplement if a test shows deficiency — excess is toxic and builds up.

Yohimbine: can raise heart rate and anxiety; avoid with high blood pressure.

Vitamin D: safe up to 4,000 IU/day; very high doses cause high blood calcium.

Zinc: chronic intake above 40 mg/day can deplete copper over time.