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SELECT 
  vi_product_descriptions.product_id, 
  vi_product_descriptions.short_description, 
  IF(
    vi_product_descriptions.short_description = '' 
    OR vi_product_descriptions.short_description IS NULL, 
    vi_product_descriptions.full_description, 
    ''
  ) AS full_description, 
  vi_product_descriptions.meta_keywords, 
  vi_product_descriptions.meta_description, 
  vi_product_descriptions.search_words, 
  vi_product_descriptions.promo_text, 
  vi_product_descriptions.unit_name 
FROM 
  vi_product_descriptions 
WHERE 
  vi_product_descriptions.product_id IN (152, 160, 150, 151) 
  AND vi_product_descriptions.lang_code = 'en'

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "vi_product_descriptions",
          "access_type": "range",
          "possible_keys": ["PRIMARY", "product_id"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["product_id", "lang_code"],
          "rows": 4,
          "filtered": 100,
          "index_condition": "vi_product_descriptions.product_id in (152,160,150,151) and vi_product_descriptions.lang_code = 'en'"
        }
      }
    ]
  }
}

Result

product_id	full_description	promo_text
150	<div id="overview-bullets"> <ul class="bullet-points"> <li>Hi-Ten Remington Steel Wildwood Citi Comfort Frame</li> <li>45mm Travel Comfort Suspension Fork</li> <li>Compact Crankset w/ Integrated Chainguard</li> <li>SSW26 Double Tunnel Alloy Rims<span> </span></li> <li>Avenir Comfort Saddle w/ Supersoft Foam, Coil Springs</li> </ul> </div>	<p class="product-promo-text"><span class="product-promo-header">FREE US shipping over $100!</span><span class="product-promo-body">Orders within next 2 days will be shipped on Monday</span></p>
151	<div id="overview-bullets"> <ul class="bullet-points"> <li>6061-T6 Aluminum Wildwood Comfort Frame</li> <li>50mm Travel Comfort Suspension Fork</li> <li>Compact Crankset w/ Integrated Chainguard</li> <li>SSW26 Double Tunnel Alloy Rims<span> </span></li> <li>Puncture-Resistant Kenda Comfort Tires</li> </ul> </div>	<p class="product-promo-text"><span class="product-promo-header">FREE US shipping over $100!</span><span class="product-promo-body">Orders within next 2 days will be shipped on Monday</span></p>
152	<div id="overview-bullets"> <ul class="bullet-points"> <li>Sun-Hot Heat-Treated Aluminum Beach Cruiser Frame</li> <li>Hi-Ten Remington Steel Curvaceous Beach Cruiser Fork</li> <li>Shimano 7-Spd Megarange Freewheel & Twist Shifter</li> <li>Rust-Proof Alloy Rims & Stainless Steel Spokes</li> <li>Color-Matched Custom Beach Cruiser Fenders</li> </ul> </div>	<p class="product-promo-text"><span class="product-promo-header">FREE US shipping over $100!</span><span class="product-promo-body">Orders within next 2 days will be shipped on Monday</span></p>
160	<div id="overview-bullets"> <ul class="bullet-points"> <li>Sun-Hot Heat-Treated Aluminum Stretch Beach Cruiser Frame</li> <li>Hi-Ten Remington Steel Curvaceous Beach Cruiser Fork</li> <li>Shimano Nexus Internal 3-Spd Hub / Twist Shifter</li> <li>Rust-Proof Alloy Rims & Stainless Steel Spokes</li> <li>Color-Matched Custom Beach Cruiser Fenders</li> </ul> </div>	<p class="product-promo-text"><span class="product-promo-header">FREE US shipping over $100!</span><span class="product-promo-body">Orders within next 2 days will be shipped on Monday</span></p>