1. Kirkland Signature Light Beer - lacks flavor, better options available.
2. Kirkland Signature Tuna - concerns about sustainability and mercury levels.
3. Kirkland Signature Orange Juice - high in sugar, better to opt for fresh.
4. Kirkland Signature Mayonnaise - taste and texture concerns.
5. Kirkland Signature Protein Bars - high in sugar and artificial additives.
6. Kirkland Signature Almond Butter - reported inconsistency in quality.
7. Kirkland Signature Bacon - some complaints about excessive fat content.