Sift Nutrition

All Reviews

Independent supplement reviews graded against the published research, including when the evidence says don't buy.

Every review we've published

Each review grades the product's ingredients one by one against published trials, names what the marketing overclaims, and says plainly who should skip it. Our rating is an evidence grade, not a sales score — no product can buy a verdict here.

Dental & Oral HealthReview

ProDentim Review 2026: What the Evidence Actually Says

Moderate evidence

An oral probiotic whose honest case rests on three of its five strains. The finished product is untested, the per-strain doses are hidden, and it won't regrow gums. A low-risk try for mild symptoms, and a waste of money for anyone expecting a cure.

Sift Nutrition Editorial TeamAug 3, 2026Read →
ProDentim oral probiotic soft tablets, 30-count bottle
Blood SugarReview

Sugar Defender Review 2026: What the Evidence Actually Says

Limited evidence

Two of its eight ingredients have real glucose trials behind them. The other six target energy and weight. The best-evidenced blood-sugar ingredient is missing entirely, and there is an interaction risk with diabetes medication that most reviews never mention.

Sift Nutrition Editorial TeamAug 7, 2026Read →
Sugar Defender blood sugar support liquid, 60 ml dropper bottle
SleepReview

Yu Sleep Review 2026: What the Evidence Actually Says

Mixed evidence

The ingredient list is unusually sensible for this category. The doses are the problem: melatonin sits below the studied range and everything else hides inside a 637 mg blend. Reasonable for mild trouble falling asleep, wrong for anyone on antidepressants.

Sift Nutrition Editorial TeamAug 7, 2026Read →
Yu Sleep liquid sleep support, three dropper bottles