Frequently Asked Questions

Valion is an independent educational resource that provides general informational content on the subject of nutrition and wholesome eating. Its purpose is to explain foundational nutritional concepts in a clear, objective, and accessible manner. The site does not sell products, offer individualized guidance, or pursue any commercial objective. It exists solely to inform.

Content is produced by the Valion editorial team, which is based in Santiago, Chile. All content is developed in accordance with a strict editorial policy that prioritizes accuracy, neutrality, and clarity. The team reviews content periodically to ensure it remains consistent with the general body of nutritional knowledge.

The content on this site is intended for general educational purposes only. It does not address individual circumstances and should not be used as the basis for personal decisions of any kind. For decisions relating to individual wellbeing, readers are encouraged to seek guidance from qualified professionals. Please refer to our Health Disclaimer for the full statement on the nature and limitations of our content.

Content is reviewed and updated on a periodic basis to ensure it reflects the current general state of nutritional knowledge. The site does not publish time-sensitive news or rapidly changing information; its focus is on foundational concepts that are stable and well-established within the field.

The information on Valion is drawn from the broad and widely accepted body of general nutritional knowledge. It is not sourced from any single study, commercial entity, or advocacy organization. Content represents the kind of foundational information that is common across reputable general educational resources on the subject of nutrition.

Macronutrients — carbohydrates, proteins, and fats — are nutrients that the body requires in relatively large quantities and that provide energy, measured in kilocalories. Micronutrients — vitamins and minerals — are required in much smaller quantities and do not directly supply energy, but are essential for enabling the biochemical processes that sustain life. Both categories are necessary components of a varied dietary pattern.

Different foods contain different combinations and concentrations of nutrients. No single food provides the full range of vitamins, minerals, amino acids, and other compounds that the body requires. Dietary variety therefore increases the likelihood that the full range of nutritional needs is met through food consumption. Nutritional literature across many frameworks consistently references variety as a characteristic feature of balanced dietary patterns.

Whole foods are foods that are consumed in a state close to their natural form, with minimal processing or refinement. Examples include whole grains, fresh or minimally processed vegetables and fruits, legumes, nuts, seeds, and eggs. The term is used in nutritional discussions to distinguish these foods from highly processed products that have been substantially altered from their original form through the addition of refined ingredients, artificial additives, or extensive industrial processing.

A balanced diet refers to a dietary pattern that provides adequate quantities of all necessary nutrients — macronutrients and micronutrients — in appropriate proportions. Various frameworks for describing a balanced diet exist, including the concept of the food pyramid and more contemporary models such as the "healthy plate." These models are educational tools that illustrate broad principles of dietary composition, not prescriptive guides for individual meal planning.

Dietary fiber refers to plant-based carbohydrates that are not broken down by the human digestive system. It is broadly categorized into soluble fiber, which forms a gel when dissolved in water, and insoluble fiber, which adds bulk without dissolving. Fiber is found in whole grains, legumes, vegetables, fruits, nuts, and seeds. Its presence in the diet is associated with a number of processes related to digestive function and the composition of the gut microbial environment.

Heat and water — the primary agents in most cooking methods — can affect the stability of certain nutrients, particularly water-soluble vitamins such as vitamin C and the B-complex group. These vitamins can leach into cooking water or be degraded by prolonged exposure to heat. Other compounds, conversely, may become more bioavailable — that is, more readily absorbed by the body — when food is cooked. The relationship between preparation method and nutritional composition varies by food type and nutrient.

Plant-based foods — including vegetables, fruits, legumes, wholegrains, nuts, and seeds — collectively represent a broad and diverse category of nutritional sources. They contribute carbohydrates, fiber, a wide range of vitamins and minerals, and various phytochemicals. Different plant foods have distinct nutritional profiles, and their inclusion in varied combinations is a common feature of many established frameworks for describing balanced dietary patterns.

No. Fats differ significantly in their chemical structure, which affects their properties and their context within the overall diet. Unsaturated fats, found in foods such as olive oil, avocados, and nuts, are liquid at room temperature and are integral to cell membrane structure and various metabolic functions. Saturated fats, found in animal products and some plant oils, are solid at room temperature. Industrial trans fats, produced through hydrogenation of vegetable oils, are broadly regarded unfavorably in nutritional literature. The overall composition and sources of fat within the diet are considered more relevant than total fat quantity in isolation.

Amino acids are the building blocks of proteins. Of the twenty amino acids relevant to human nutrition, nine are described as essential — meaning the human body cannot synthesize them independently and must obtain them through dietary intake. Foods that contain all nine essential amino acids in adequate proportions are commonly referred to as complete protein sources. Animal-derived proteins are typically complete; plant proteins may be complemented by combining different plant sources over the course of a day to ensure coverage of all essential amino acids.

Seasonal produce refers to fruits and vegetables that are harvested at the natural point in the agricultural calendar when they reach maturity in a given geographic region. Seasonal availability varies by climate and location. Foods consumed closer to their harvest date have been subject to less storage and transportation time, which may affect their nutrient composition and organoleptic qualities such as taste and texture. Understanding seasonal availability is considered a form of food literacy — an awareness of how agricultural cycles shape what is accessible at any given time.