1. Introduction: The Ketogenic Paradigm and Nutritional Challenges (Approx. 200 words)
   The Ketogenic Diet (KD) is a therapeutic nutritional pattern characterized by very low carbohydrate intake, moderate protein, and high fat consumption, aiming to induce and maintain a metabolic state known as Ketosis. During ketosis, the body shifts its primary energy source from glucose to fats, leading to the production of Ketone Bodies. However, maintaining the strict macronutrient ratios (typically 70–80% fat, 15–20% protein, and 5–10% carbohydrates, or below 50 grams of net carbohydrates per day) requires meticulous food selection.
   One of the central challenges of the KD is finding healthy, nutrient-dense fat sources that fit easily into the regimen without contributing excessive amounts of net carbohydrates. Tree nuts have garnered significant attention due to their richness in beneficial fats, fiber, and micronutrients. Pistachios (Pistacia vera), in particular, show high potential as a functional snack within the KD due to their unique composition of fatty acids, phenolic compounds, and phytosterols. The objective of this paper is to rigorously examine the nutritional profile of pistachios, determine the scientifically justified daily limit based on net carbohydrate calculations, and analyze its metabolic effects on key health markers relevant to the ketogenic lifestyle.

2. Materials and Methods: Nutritional Profile and Net Carbohydrate Calculation (Approx. 300 words)
   2.1. Macronutrient Analysis in Pistachios
   Based on standard nutritional data, a typical serving size of pistachios (approximately 28 grams or 49 shelled kernels) contains an average of 159 kilocalories. The macronutrient distribution in this serving is as follows:

• Total Fat: Approximately 12.7 grams (about 70% of total calories). The majority of this fat is in the form of Monounsaturated Fatty Acids (MUFAs), particularly oleic acid, which is associated with improved lipid profiles and cardiovascular health.
• Protein: Around 6 grams (a relatively high-protein source for a tree nut).
• Total Carbohydrates: Approximately 8 grams.
  2.2. Calculation of Net Carbohydrates and Permissible Dose
  The most critical factor for individuals on a ketogenic diet is the Net Carbohydrate count, which is calculated by subtracting dietary fiber from total carbohydrates:
• Dietary Fiber: Approximately 3 grams per 28-gram serving of pistachios.
• ​Dietary Fiber: Approximately 3 grams per 28-gram serving of pistachios.
• ​Net Carbohydrate: 8 \; g \; (Total \; Carb) – 3 \; g \; (Fiber) = 5 \; g \; (Net \; Carb)
• ​Conclusion on Permissible Dose: Assuming a daily net carbohydrate restriction of 20 to 50 grams is required to maintain ketosis:
• ​A person adhering to a strict 20-gram net carb limit could technically consume about 4 servings (around 200 kernels) of pistachios daily.
• ​However, to reserve carbohydrate allowance for low-carb vegetables (which are micronutrient-rich and essential), one to two servings (equivalent to 5–10 grams of net carbs) are generally recommended.

📞 Contact Number for Purchase and Ordering
For purchasing pistachios and placing an order, please contact Mr. Ravanshad:
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