Nutrition facts: Rich in omega-3 fatty acids, protein, antioxidants, magnesium, copper, vitamins A, and D, walnuts can be an effective weight loss tool. 12–14 halves of walnuts will provide you about 190 calories, but not all calories are bad for your health.Click to see full answer. Just so, is Walnut good for weight loss?Walnuts for Weight Loss. Like all nuts, walnuts are high in heart-healthy unsaturated fats. It may also stimulate your body to lose weight faster. Walnuts contain 2.5 grams of ALA per serving, making them a rich source of this beneficial fatty acid.Subsequently, question is, which nuts are the best for weight loss? If you’d like to start incorporating nuts into your diet plan, here are five of the best nuts for weight loss. Walnuts. Walnuts are one of the best nuts for weight loss because they are chock full of healthy fats. Pistachios. Almonds. Cashews. Brazil Nuts. Regarding this, how many walnuts should you eat in a day? “A handful of walnuts contains almost twice as much antioxidants as an equivalent amount of any other commonly consumed nut,” said US chemistry professor and study researcher Joe Vinson in a statement. “But unfortunately, people don’t eat a lot of them.” His advice: eat seven walnuts a day.Can you gain weight from eating walnuts?Studies consistently show the beneficial effects of eating nuts, but as high-energy foods, their regular consumption may lead to weight gain. The walnut-supplemented diet resulted in greater daily energy intake (557 kJ (133 kcal)), which should theoretically have led to a weight gain of 3.1 kg over the 6-month period.