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Abbey Sharp Registered Dietitian@abbeyskitchenInstagram

Should you stop buying these toxic processed foods at Costco??? Influencers love to use the word TOXIC to

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what it claims

Processed foods should not be demonized on the premise that they are 'toxic'; incorporating lightly processed products can be a practical, affordable, and realistic strategy for maintaining a balanced diet on a daily basis.

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Current nutritional science, notably via systematic reviews published in journals such as 'The Lancet' or expert reports, confirms that while excessive consumption of…

noli's read

Current nutritional science, notably via systematic reviews published in journals such as 'The Lancet' or expert reports, confirms that while excessive consumption of ultra-processed foods is correlated with increased health risks, the term 'toxic' is inappropriate and scientifically unfounded for describing common foods. The NOVA classification, used in research to define the degree of processing, shows that processing is not synonymous with danger: for example, frozen vegetables or canned goods are technically processed but offer nutritional profiles comparable to fresh products (Source: British Journal of Nutrition). The argument that accessibility and dietary adherence take precedence over theoretical perfection is supported by behavioral nutrition studies (RCTs and observational studies). This body of work highlights that a flexible approach, prioritizing the actual consumption of varied foods, is more beneficial in the long term than strict avoidance, which can generate stress. Exaggeration often lies in generalization: not all 'processed' food is harmful, and not all 'natural' food is necessarily ideal. The scientific consensus favors prioritization based on actual nutritional quality (nutrients, fiber, added sugars) rather than simply on the degree of industrial processing.

the sources

  1. 1Hall KD, Ayuketah A, Brychta R, et al. 2019
  2. 2Lane MM, Gamage E, Du S, et al. 2024
  3. 3Stewart TM, Williamson DA, White MA 2002
  4. 4Neumark-Sztainer D et al. 2007

Claimed by Abbey Sharp Registered Dietitian. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Evidence
C

Linked to, not proven to cause.

Effect
rigid vs flexible dieting and disordered-eating symptoms; dieting and later weight/binge outcomes — rigid control associated with higher eating-disorder symptom and BMI scores; flexible control associated with lower; adolescent dieters had higher odds of subsequent overweight and binge eating over 5 years
Measured on
nonobese adult women (cross-sectional); adolescent cohort (Project EAT, 5-year longitudinal)

What’s uncertain

The evidence is observational (associations, not proof), and much of it is in women and adolescents. It doesn't mean quantity and food quality stop mattering, only that rigid restriction is rarely the winning strategy.

Abbey Sharp Registered Dietitian in the Register76 claims graded · solidity 98/100See their record →

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